13121431013 has 8 divisors (see below), whose sum is σ = 13200703488. Its totient is φ = 13042393744.

The previous prime is 13121431007. The next prime is 13121431021. The reversal of 13121431013 is 31013412131.

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 13121431013 - 2¹⁴ = 13121414629 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 (13121431003) 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, 53756 + ... + 170682.

It is an arithmetic number, because the mean of its divisors is an integer number (1650087936).

Almost surely, 2^13121431013 is an apocalyptic number.

It is an amenable number.

13121431013 is a deficient number, since it is larger than the sum of its proper divisors (79272475).

13121431013 is a wasteful number, since it uses less digits than its factorization.

13121431013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117603.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13121431013 its reverse (31013412131), we get a palindrome (44134843144).

The spelling of 13121431013 in words is "thirteen billion, one hundred twenty-one million, four hundred thirty-one thousand, thirteen".