13191326031 has 8 divisors (see below), whose sum is σ = 18941391280. Its totient is φ = 8117739072.

The previous prime is 13191326009. The next prime is 13191326033. The reversal of 13191326031 is 13062319131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13191326031 - 2⁹ = 13191325519 is a prime.

It is a super-2 number, since 2×13191326031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13191326031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13191326033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169119526 + ... + 169119603.

It is an arithmetic number, because the mean of its divisors is an integer number (2367673910).

Almost surely, 2^13191326031 is an apocalyptic number.

13191326031 is a deficient number, since it is larger than the sum of its proper divisors (5750065249).

13191326031 is a wasteful number, since it uses less digits than its factorization.

13191326031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338239145.

The product of its (nonzero) digits is 2916, while the sum is 30.

The spelling of 13191326031 in words is "thirteen billion, one hundred ninety-one million, three hundred twenty-six thousand, thirty-one".