13020012120 has 64 divisors (see below), whose sum is σ = 39554496000. Its totient is φ = 3428051328.

The previous prime is 13020012091. The next prime is 13020012127. The reversal of 13020012120 is 2121002031.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 13020012096 and 13020012105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020012127) 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, 677230 + ... + 696189.

It is an arithmetic number, because the mean of its divisors is an integer number (618039000).

Almost surely, 2^13020012120 is an apocalyptic number.

13020012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13020012120 is an abundant number, since it is smaller than the sum of its proper divisors (26534483880).

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

13020012120 is a wasteful number, since it uses less digits than its factorization.

13020012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373512 (or 1373508 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 13020012120 its reverse (2121002031), we get a palindrome (15141014151).

The spelling of 13020012120 in words is "thirteen billion, twenty million, twelve thousand, one hundred twenty".