13031232321023 has 8 divisors (see below), whose sum is σ = 14912510440992. Its totient is φ = 11154872576736.

The previous prime is 13031232320989. The next prime is 13031232321077. The reversal of 13031232321023 is 32012323213031.

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

It is not a de Polignac number, because 13031232321023 - 2³⁰ = 13030158579199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13031232320983 and 13031232321001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031232323023) 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, 1229588240 + ... + 1229598837.

It is an arithmetic number, because the mean of its divisors is an integer number (1864063805124).

Almost surely, 2^{13031232321023} is an apocalyptic number.

13031232321023 is a deficient number, since it is larger than the sum of its proper divisors (1881278119969).

13031232321023 is an equidigital number, since it uses as much as digits as its factorization.

13031232321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459187841.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 13031232321023 its reverse (32012323213031), we get a palindrome (45043555534054).

The spelling of 13031232321023 in words is "thirteen trillion, thirty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, twenty-three".