312002132331 has 16 divisors (see below), whose sum is σ = 427315700000. Its totient is φ = 202346823168.

The previous prime is 312002132311. The next prime is 312002132357. The reversal of 312002132331 is 133231200213.

It is not a de Polignac number, because 312002132331 - 2²³ = 311993743723 is a prime.

It is a super-2 number, since 2×312002132331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312002132298 and 312002132307.

It is not an unprimeable number, because it can be changed into a prime (312002132311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465795 + ... + 917043.

It is an arithmetic number, because the mean of its divisors is an integer number (26707231250).

Almost surely, 2^312002132331 is an apocalyptic number.

312002132331 is a deficient number, since it is larger than the sum of its proper divisors (115313567669).

312002132331 is a wasteful number, since it uses less digits than its factorization.

312002132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457518.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 312002132331 its reverse (133231200213), we get a palindrome (445233332544).

The spelling of 312002132331 in words is "three hundred twelve billion, two million, one hundred thirty-two thousand, three hundred thirty-one".