120012531113 has 4 divisors (see below), whose sum is σ = 120398423808. Its totient is φ = 119626638420.

The previous prime is 120012531109. The next prime is 120012531139. The reversal of 120012531113 is 311135210021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311135210021 = 23 ⋅13527617827.

It is a cyclic number.

It is not a de Polignac number, because 120012531113 - 2² = 120012531109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120012531413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192945881 + ... + 192946502.

It is an arithmetic number, because the mean of its divisors is an integer number (30099605952).

Almost surely, 2^120012531113 is an apocalyptic number.

It is an amenable number.

120012531113 is a deficient number, since it is larger than the sum of its proper divisors (385892695).

120012531113 is an equidigital number, since it uses as much as digits as its factorization.

120012531113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385892694.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 120012531113 its reverse (311135210021), we get a palindrome (431147741134).

The spelling of 120012531113 in words is "one hundred twenty billion, twelve million, five hundred thirty-one thousand, one hundred thirteen".