12113113031 has 8 divisors (see below), whose sum is σ = 12139231104. Its totient is φ = 12087024120.

The previous prime is 12113113013. The next prime is 12113113039. The reversal of 12113113031 is 13031131121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12113113031 - 2⁶ = 12113112967 is a prime.

It is a super-2 number, since 2×12113113031² (a number of 21 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 (12113113039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956366 + ... + 968948.

It is an arithmetic number, because the mean of its divisors is an integer number (1517403888).

Almost surely, 2^12113113031 is an apocalyptic number.

12113113031 is a deficient number, since it is larger than the sum of its proper divisors (26118073).

12113113031 is a wasteful number, since it uses less digits than its factorization.

12113113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14581.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 12113113031 its reverse (13031131121), we get a palindrome (25144244152).

The spelling of 12113113031 in words is "twelve billion, one hundred thirteen million, one hundred thirteen thousand, thirty-one".