12120113112031 has 4 divisors (see below), whose sum is σ = 12120141028864. Its totient is φ = 12120085195200.

The previous prime is 12120113111971. The next prime is 12120113112073. The reversal of 12120113112031 is 13021131102121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12120113112031 - 2²³ = 12120104723423 is a prime.

It is a super-2 number, since 2×12120113112031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120113112931) 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, 13296735 + ... + 14178976.

It is an arithmetic number, because the mean of its divisors is an integer number (3030035257216).

Almost surely, 2^{12120113112031} is an apocalyptic number.

12120113112031 is a deficient number, since it is larger than the sum of its proper divisors (27916833).

12120113112031 is an equidigital number, since it uses as much as digits as its factorization.

12120113112031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27916832.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12120113112031 its reverse (13021131102121), we get a palindrome (25141244214152).

The spelling of 12120113112031 in words is "twelve trillion, one hundred twenty billion, one hundred thirteen million, one hundred twelve thousand, thirty-one".