312131122400422 has 16 divisors (see below), whose sum is σ = 504272481465312. Its totient is φ = 144043184214720.

The previous prime is 312131122400413. The next prime is 312131122400423. The reversal of 312131122400422 is 224004221131213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312131122400423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722022103 + ... + 722454274.

It is an arithmetic number, because the mean of its divisors is an integer number (31517030091582).

Almost surely, 2^{312131122400422} is an apocalyptic number.

312131122400422 is a deficient number, since it is larger than the sum of its proper divisors (192141359064890).

312131122400422 is a wasteful number, since it uses less digits than its factorization.

312131122400422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444484703.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 312131122400422 its reverse (224004221131213), we get a palindrome (536135343531635).

The spelling of 312131122400422 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred twenty-two million, four hundred thousand, four hundred twenty-two".