13013231021 has 8 divisors (see below), whose sum is σ = 14873107584. Its totient is φ = 11153565360.

The previous prime is 13013231017. The next prime is 13013231027. The reversal of 13013231021 is 12013231031.

13013231021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13013231021 - 2² = 13013231017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013231027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115136 + ... + 198198.

It is an arithmetic number, because the mean of its divisors is an integer number (1859138448).

Almost surely, 2^13013231021 is an apocalyptic number.

It is an amenable number.

13013231021 is a deficient number, since it is larger than the sum of its proper divisors (1859876563).

13013231021 is an equidigital number, since it uses as much as digits as its factorization.

13013231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105451.

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

Adding to 13013231021 its reverse (12013231031), we get a palindrome (25026462052).

The spelling of 13013231021 in words is "thirteen billion, thirteen million, two hundred thirty-one thousand, twenty-one".