13231322011993 has 32 divisors (see below), whose sum is σ = 14190280047360. Its totient is φ = 12293714165760.

The previous prime is 13231322011987. The next prime is 13231322011997. The reversal of 13231322011993 is 39911022313231.

It is a cyclic number.

It is not a de Polignac number, because 13231322011993 - 2¹⁷ = 13231321880921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231322011997) 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, 285991483 + ... + 286037743.

It is an arithmetic number, because the mean of its divisors is an integer number (443446251480).

Almost surely, 2^{13231322011993} is an apocalyptic number.

It is an amenable number.

13231322011993 is a deficient number, since it is larger than the sum of its proper divisors (958958035367).

13231322011993 is a wasteful number, since it uses less digits than its factorization.

13231322011993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47137.

The product of its (nonzero) digits is 52488, while the sum is 40.

The spelling of 13231322011993 in words is "thirteen trillion, two hundred thirty-one billion, three hundred twenty-two million, eleven thousand, nine hundred ninety-three".