3123013013312 has 14 divisors (see below), whose sum is σ = 6197228948418. Its totient is φ = 1561506506624.

The previous prime is 3123013013311. The next prime is 3123013013333. The reversal of 3123013013312 is 2133103103213.

It can be written as a sum of positive squares in only one way, i.e., 2795664256576 + 327348756736 = 1672024^2 + 572144^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123013013311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24398539103 + ... + 24398539230.

Almost surely, 2^{3123013013312} is an apocalyptic number.

3123013013312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3123013013312 is a deficient number, since it is larger than the sum of its proper divisors (3074215935106).

3123013013312 is an equidigital number, since it uses as much as digits as its factorization.

3123013013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48797078345 (or 48797078335 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 3123013013312 its reverse (2133103103213), we get a palindrome (5256116116525).

The spelling of 3123013013312 in words is "three trillion, one hundred twenty-three billion, thirteen million, thirteen thousand, three hundred twelve".