12031031013 has 8 divisors (see below), whose sum is σ = 16183334208. Its totient is φ = 7949707584.

The previous prime is 12031030997. The next prime is 12031031027. The reversal of 12031031013 is 31013013021.

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

It is not a de Polignac number, because 12031031013 - 2⁴ = 12031030997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12031030983 and 12031031001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031031113) 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, 17744545 + ... + 17745222.

It is an arithmetic number, because the mean of its divisors is an integer number (2022916776).

Almost surely, 2^12031031013 is an apocalyptic number.

It is an amenable number.

12031031013 is a deficient number, since it is larger than the sum of its proper divisors (4152303195).

12031031013 is a wasteful number, since it uses less digits than its factorization.

12031031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35489883.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 12031031013 its reverse (31013013021), we get a palindrome (43044044034).

The spelling of 12031031013 in words is "twelve billion, thirty-one million, thirty-one thousand, thirteen".