312131112401022 has 8 divisors (see below), whose sum is σ = 624262224802056. Its totient is φ = 104043704133672.

The previous prime is 312131112400927. The next prime is 312131112401027. The reversal of 312131112401022 is 220104211131213.

It is a sphenic number, since it is the product of 3 distinct primes.

312131112401022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 312131112400983 and 312131112401001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312131112401027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26010926033413 + ... + 26010926033424.

It is an arithmetic number, because the mean of its divisors is an integer number (78032778100257).

Almost surely, 2^{312131112401022} is an apocalyptic number.

312131112401022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

312131112401022 is a wasteful number, since it uses less digits than its factorization.

312131112401022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52021852066842.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 312131112401022 its reverse (220104211131213), we get a palindrome (532235323532235).

The spelling of 312131112401022 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred twelve million, four hundred one thousand, twenty-two".