13103131300021 has 16 divisors (see below), whose sum is σ = 15855986117376. Its totient is φ = 10570529223936.

The previous prime is 13103131299991. The next prime is 13103131300043. The reversal of 13103131300021 is 12000313130131.

It is a cyclic number.

It is not a de Polignac number, because 13103131300021 - 2¹⁷ = 13103131168949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103131300321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35205120 + ... + 35575366.

It is an arithmetic number, because the mean of its divisors is an integer number (990999132336).

Almost surely, 2^{13103131300021} is an apocalyptic number.

It is an amenable number.

13103131300021 is a deficient number, since it is larger than the sum of its proper divisors (2752854817355).

13103131300021 is a wasteful number, since it uses less digits than its factorization.

13103131300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667668.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13103131300021 its reverse (12000313130131), we get a palindrome (25103444430152).

The spelling of 13103131300021 in words is "thirteen trillion, one hundred three billion, one hundred thirty-one million, three hundred thousand, twenty-one".