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1111111002012 = 2231179106550729
BaseRepresentation
bin10000001010110011011…
…000000110011110011100
310221012222020101011002210
4100022303120012132130
5121201023404031022
62210234244520420
7143163236454264
oct20126330063634
93835866334083
101111111002012
11399246215290
1215b4109b0110
1380a149c908b
143bac6dd07a4
151dd81169a0c
hex102b360679c

1111111002012 has 48 divisors (see below), whose sum is σ = 2864083622400. Its totient is φ = 332438271360.

The previous prime is 1111111002011. The next prime is 1111111002017. The reversal of 1111111002012 is 2102001111111.

It is a super-3 number, since 3×11111110020123 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111111002011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53264937 + ... + 53285792.

It is an arithmetic number, because the mean of its divisors is an integer number (59668408800).

Almost surely, 21111111002012 is an apocalyptic number.

1111111002012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111111002012 is an abundant number, since it is smaller than the sum of its proper divisors (1752972620388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111111002012 is a wasteful number, since it uses less digits than its factorization.

1111111002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106550826 (or 106550824 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1111111002012 its reverse (2102001111111), we get a palindrome (3213112113123).

The spelling of 1111111002012 in words is "one trillion, one hundred eleven billion, one hundred eleven million, two thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 79 132 158 237 316 474 869 948 1738 2607 3476 5214 10428 106550729 213101458 319652187 426202916 639304374 1172058019 1278608748 2344116038 3516174057 4688232076 7032348114 8417507591 14064696228 16835015182 25252522773 33670030364 50505045546 92592583501 101010091092 185185167002 277777750503 370370334004 555555501006 1111111002012