12312037015 has 4 divisors (see below), whose sum is σ = 14774444424. Its totient is φ = 9849629608.

The previous prime is 12312036991. The next prime is 12312037033. The reversal of 12312037015 is 51073021321.

It is a happy number.

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 12312037015 - 2¹⁷ = 12311905943 is a prime.

It is a super-2 number, since 2×12312037015² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231203697 + ... + 1231203706.

It is an arithmetic number, because the mean of its divisors is an integer number (3693611106).

Almost surely, 2^12312037015 is an apocalyptic number.

12312037015 is a deficient number, since it is larger than the sum of its proper divisors (2462407409).

12312037015 is an equidigital number, since it uses as much as digits as its factorization.

12312037015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462407408.

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 12312037015 its reverse (51073021321), we get a palindrome (63385058336).

The spelling of 12312037015 in words is "twelve billion, three hundred twelve million, thirty-seven thousand, fifteen".