13120103121 has 16 divisors (see below), whose sum is σ = 18300038400. Its totient is φ = 8350229888.

The previous prime is 13120103119. The next prime is 13120103147. The reversal of 13120103121 is 12130102131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13120103121 - 2¹ = 13120103119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13120103121.

It is not an unprimeable number, because it can be changed into a prime (13120103021) 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, 839481 + ... + 854966.

It is an arithmetic number, because the mean of its divisors is an integer number (1143752400).

Almost surely, 2^13120103121 is an apocalyptic number.

It is an amenable number.

13120103121 is a deficient number, since it is larger than the sum of its proper divisors (5179935279).

13120103121 is a wasteful number, since it uses less digits than its factorization.

13120103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694568.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13120103121 its reverse (12130102131), we get a palindrome (25250205252).

It can be divided in two parts, 1312010 and 3121, that added together give a palindrome (1315131).

The spelling of 13120103121 in words is "thirteen billion, one hundred twenty million, one hundred three thousand, one hundred twenty-one".