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12012001113 = 377910876661
BaseRepresentation
bin10110010111111100…
…01001011101011001
31011000010200212210010
423023332021131121
5144100033013423
65303534512133
7603445216260
oct131376113531
934003625703
1012012001113
115104509252
1223b2965649
1311957a7188
1481d4635d7
154a4841693
hex2cbf89759

12012001113 has 32 divisors (see below), whose sum is σ = 18555535360. Its totient is φ = 6769863360.

The previous prime is 12012001103. The next prime is 12012001129. The reversal of 12012001113 is 31110021021.

It is not a de Polignac number, because 12012001113 - 24 = 12012001097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12012001103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1800003 + ... + 1806663.

It is an arithmetic number, because the mean of its divisors is an integer number (579860480).

Almost surely, 212012001113 is an apocalyptic number.

It is an amenable number.

12012001113 is a deficient number, since it is larger than the sum of its proper divisors (6543534247).

12012001113 is a wasteful number, since it uses less digits than its factorization.

12012001113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837.

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

Adding to 12012001113 its reverse (31110021021), we get a palindrome (43122022134).

The spelling of 12012001113 in words is "twelve billion, twelve million, one thousand, one hundred thirteen".

Divisors: 1 3 7 21 79 237 553 1087 1659 3261 6661 7609 19983 22827 46627 85873 139881 257619 526219 601111 1578657 1803333 3683533 7240507 11050599 21721521 50683549 152050647 572000053 1716000159 4004000371 12012001113