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1111101212130 = 2357133718160773
BaseRepresentation
bin10000001010110010110…
…010110000010111100010
310221012221112221202220120
4100022302302300113202
5121201013402242010
62210233255021110
7143163060321330
oct20126262602742
93835845852816
101111101212130
11399240738a78
1215b40966a796
1380a1297c050
143bac59a2b50
151dd80383e70
hex102b2cb05e2

1111101212130 has 256 divisors, whose sum is σ = 3389403902976. Its totient is φ = 226830274560.

The previous prime is 1111101212099. The next prime is 1111101212131. The reversal of 1111101212130 is 312121011111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1111101212131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18252424 + ... + 18313196.

It is an arithmetic number, because the mean of its divisors is an integer number (13239858996).

Almost surely, 21111101212130 is an apocalyptic number.

1111101212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111101212130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694701951488).

1111101212130 is an abundant number, since it is smaller than the sum of its proper divisors (2278302690846).

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

1111101212130 is a wasteful number, since it uses less digits than its factorization.

1111101212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61021.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1111101212130 its reverse (312121011111), we get a palindrome (1423222223241).

It can be divided in two parts, 1111101 and 212130, that added together give a palindrome (1323231).

The spelling of 1111101212130 in words is "one trillion, one hundred eleven billion, one hundred one million, two hundred twelve thousand, one hundred thirty".