13021231031 has 8 divisors (see below), whose sum is σ = 14077007280. Its totient is φ = 12002499648.

The previous prime is 13021231021. The next prime is 13021231037. The reversal of 13021231031 is 13013212031.

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

It is a cyclic number.

It is not a de Polignac number, because 13021231031 - 2³⁰ = 11947489207 is a prime.

It is a super-3 number, since 3×13021231031³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021231037) 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, 9260486 + ... + 9261891.

It is an arithmetic number, because the mean of its divisors is an integer number (1759625910).

Almost surely, 2^13021231031 is an apocalyptic number.

13021231031 is a deficient number, since it is larger than the sum of its proper divisors (1055776249).

13021231031 is a wasteful number, since it uses less digits than its factorization.

13021231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18522433.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13021231031 its reverse (13013212031), we get a palindrome (26034443062).

The spelling of 13021231031 in words is "thirteen billion, twenty-one million, two hundred thirty-one thousand, thirty-one".