312131401431042 has 32 divisors (see below), whose sum is σ = 636050228951808. Its totient is φ = 102079284293376.

The previous prime is 312131401431029. The next prime is 312131401431061. The reversal of 312131401431042 is 240134104131213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16072698 + ... + 29708490.

It is an arithmetic number, because the mean of its divisors is an integer number (19876569654744).

Almost surely, 2^{312131401431042} is an apocalyptic number.

312131401431042 is an abundant number, since it is smaller than the sum of its proper divisors (323918827520766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312131401431042 is a wasteful number, since it uses less digits than its factorization.

312131401431042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13707834.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 312131401431042 its reverse (240134104131213), we get a palindrome (552265505562255).

The spelling of 312131401431042 in words is "three hundred twelve trillion, one hundred thirty-one billion, four hundred one million, four hundred thirty-one thousand, forty-two".