312212400233123 has 24 divisors (see below), whose sum is σ = 357182803975680. Its totient is φ = 272020364385120.

The previous prime is 312212400233117. The next prime is 312212400233131. The reversal of 312212400233123 is 321332004212213.

It is not a de Polignac number, because 312212400233123 - 2¹⁸ = 312212399970979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312212400230123) 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, 178524911 + ... + 180265272.

It is an arithmetic number, because the mean of its divisors is an integer number (14882616832320).

Almost surely, 2^{312212400233123} is an apocalyptic number.

312212400233123 is a deficient number, since it is larger than the sum of its proper divisors (44970403742557).

312212400233123 is a wasteful number, since it uses less digits than its factorization.

312212400233123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358790499 (or 358790486 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 312212400233123 its reverse (321332004212213), we get a palindrome (633544404445336).

The spelling of 312212400233123 in words is "three hundred twelve trillion, two hundred twelve billion, four hundred million, two hundred thirty-three thousand, one hundred twenty-three".