13120203120 has 40 divisors (see below), whose sum is σ = 40672630416. Its totient is φ = 3498720768.

The previous prime is 13120203059. The next prime is 13120203137. The reversal of 13120203120 is 2130202131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13120203120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27333517 + ... + 27333996.

Almost surely, 2^13120203120 is an apocalyptic number.

13120203120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120203120 is an abundant number, since it is smaller than the sum of its proper divisors (27552427296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13120203120 is a wasteful number, since it uses less digits than its factorization.

13120203120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54667529 (or 54667523 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13120203120 its reverse (2130202131), we get a palindrome (15250405251).

The spelling of 13120203120 in words is "thirteen billion, one hundred twenty million, two hundred three thousand, one hundred twenty".