12940311291111 has 12 divisors (see below), whose sum is σ = 19196738071992. Its totient is φ = 8393715431856.

The previous prime is 12940311291109. The next prime is 12940311291133. The reversal of 12940311291111 is 11119211304921.

12940311291111 is a `hidden beast` number, since 1 + 2 + 9 + 40 + 311 + 291 + 1 + 11 = 666.

It is not a de Polignac number, because 12940311291111 - 2¹ = 12940311291109 is a prime.

It is a super-2 number, since 2×12940311291111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12940311291101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19429896501 + ... + 19429897166.

It is an arithmetic number, because the mean of its divisors is an integer number (1599728172666).

Almost surely, 2^{12940311291111} is an apocalyptic number.

12940311291111 is a deficient number, since it is larger than the sum of its proper divisors (6256426780881).

12940311291111 is a wasteful number, since it uses less digits than its factorization.

12940311291111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38859793710 (or 38859793707 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 36.

The spelling of 12940311291111 in words is "twelve trillion, nine hundred forty billion, three hundred eleven million, two hundred ninety-one thousand, one hundred eleven".