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1012001002011 = 3547317279523
BaseRepresentation
bin11101011100111111111…
…01011101001000011011
310120202011002102111100000
432232133331131020123
5113040034224031021
62052523513344043
7133054220405046
oct16563775351033
93522132374300
101012001002011
1136020720137a
12144171108023
137457b6c146c
1436da4245c5d
151b4d0133b26
hexeb9ff5d21b

1012001002011 has 48 divisors (see below), whose sum is σ = 1553062178304. Its totient is φ = 658227350304.

The previous prime is 1012001002007. The next prime is 1012001002043. The reversal of 1012001002011 is 1102001002101.

It is a happy number.

It is not a de Polignac number, because 1012001002011 - 22 = 1012001002007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1012001001984 and 1012001002002.

It is not an unprimeable number, because it can be changed into a prime (1012001002211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3480696 + ... + 3760218.

It is an arithmetic number, because the mean of its divisors is an integer number (32355462048).

Almost surely, 21012001002011 is an apocalyptic number.

1012001002011 is a deficient number, since it is larger than the sum of its proper divisors (541061176293).

1012001002011 is an equidigital number, since it uses as much as digits as its factorization.

1012001002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279902 (or 279890 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1012001002011 its reverse (1102001002101), we get a palindrome (2114002004112).

The spelling of 1012001002011 in words is "one trillion, twelve billion, one million, two thousand, eleven".

Divisors: 1 3 9 27 47 81 141 243 317 423 951 1269 2853 3807 8559 11421 14899 25677 44697 77031 134091 279523 402273 838569 1206819 2515707 3620457 7547121 13137581 22641363 39412743 67924089 88608791 118238229 265826373 354714687 797479119 1064144061 2392437357 3192432183 4164613177 7177312071 12493839531 21531936213 37481518593 112444555779 337333667337 1012001002011