13111432991502 has 64 divisors (see below), whose sum is σ = 28418329868544. Its totient is φ = 4016707269120.

The previous prime is 13111432991491. The next prime is 13111432991603. The reversal of 13111432991502 is 20519923411131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16932852 + ... + 17690232.

It is an arithmetic number, because the mean of its divisors is an integer number (444036404196).

Almost surely, 2^{13111432991502} is an apocalyptic number.

13111432991502 is an abundant number, since it is smaller than the sum of its proper divisors (15306896877042).

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

13111432991502 is a wasteful number, since it uses less digits than its factorization.

13111432991502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761393.

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 13111432991502 in words is "thirteen trillion, one hundred eleven billion, four hundred thirty-two million, nine hundred ninety-one thousand, five hundred two".