312131133022 has 8 divisors (see below), whose sum is σ = 484341413400. Its totient is φ = 150683995224.

The previous prime is 312131133001. The next prime is 312131133029. The reversal of 312131133022 is 220331131213.

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

It is a junction number, because it is equal to n+sod(n) for n = 312131132984 and 312131133002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312131133029) 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, 2690785572 + ... + 2690785687.

It is an arithmetic number, because the mean of its divisors is an integer number (60542676675).

Almost surely, 2^312131133022 is an apocalyptic number.

312131133022 is a deficient number, since it is larger than the sum of its proper divisors (172210280378).

312131133022 is a wasteful number, since it uses less digits than its factorization.

312131133022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381571290.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 312131133022 its reverse (220331131213), we get a palindrome (532462264235).

The spelling of 312131133022 in words is "three hundred twelve billion, one hundred thirty-one million, one hundred thirty-three thousand, twenty-two".