312233445431020 has 12 divisors (see below), whose sum is σ = 655690235405184. Its totient is φ = 124893378172400.

The previous prime is 312233445431003. The next prime is 312233445431021. The reversal of 312233445431020 is 20134544332213.

It is a super-2 number, since 2×312233445431020² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312233445431021) 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, 7805836135756 + ... + 7805836135795.

It is an arithmetic number, because the mean of its divisors is an integer number (54640852950432).

Almost surely, 2^{312233445431020} is an apocalyptic number.

It is an amenable number.

312233445431020 is an abundant number, since it is smaller than the sum of its proper divisors (343456789974164).

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

312233445431020 is a wasteful number, since it uses less digits than its factorization.

312233445431020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15611672271560 (or 15611672271558 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 312233445431020 its reverse (20134544332213), we get a palindrome (332367989763233).

The spelling of 312233445431020 in words is "three hundred twelve trillion, two hundred thirty-three billion, four hundred forty-five million, four hundred thirty-one thousand, twenty".