312131421010123 has 24 divisors (see below), whose sum is σ = 368728706359296. Its totient is φ = 261918505087200.

The previous prime is 312131421010121. The next prime is 312131421010133. The reversal of 312131421010123 is 321010124131213.

It is not a de Polignac number, because 312131421010123 - 2¹ = 312131421010121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312131421010121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45911478 + ... + 52269748.

It is an arithmetic number, because the mean of its divisors is an integer number (15363696098304).

Almost surely, 2^{312131421010123} is an apocalyptic number.

312131421010123 is a deficient number, since it is larger than the sum of its proper divisors (56597285349173).

312131421010123 is a wasteful number, since it uses less digits than its factorization.

312131421010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6384715 (or 6384702 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 312131421010123 its reverse (321010124131213), we get a palindrome (633141545141336).

The spelling of 312131421010123 in words is "three hundred twelve trillion, one hundred thirty-one billion, four hundred twenty-one million, ten thousand, one hundred twenty-three".