13231021010 has 16 divisors (see below), whose sum is σ = 23855475672. Its totient is φ = 5283600000.

The previous prime is 13231020977. The next prime is 13231021019. The reversal of 13231021010 is 1012013231.

It can be written as a sum of positive squares in 4 ways, for example, as 13114143289 + 116877721 = 114517^2 + 10811^2 .

It is a super-2 number, since 2×13231021010² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13231021019) 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, 1094741 + ... + 1106760.

Almost surely, 2^13231021010 is an apocalyptic number.

13231021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231021010 is a deficient number, since it is larger than the sum of its proper divisors (10624454662).

13231021010 is a wasteful number, since it uses less digits than its factorization.

13231021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202109.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 13231021010 its reverse (1012013231), we get a palindrome (14243034241).

The spelling of 13231021010 in words is "thirteen billion, two hundred thirty-one million, twenty-one thousand, ten".