312132311332 has 24 divisors (see below), whose sum is σ = 578496714264. Its totient is φ = 146851786752.

The previous prime is 312132311303. The next prime is 312132311333. The reversal of 312132311332 is 233113231213.

It can be written as a sum of positive squares in 4 ways, for example, as 71153428516 + 240978882816 = 266746^2 + 490896^2 .

It is a super-2 number, since 2×312132311332² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312132311297 and 312132311306.

It is not an unprimeable number, because it can be changed into a prime (312132311333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234273 + ... + 824104.

It is an arithmetic number, because the mean of its divisors is an integer number (24104029761).

Almost surely, 2^312132311332 is an apocalyptic number.

It is an amenable number.

312132311332 is a deficient number, since it is larger than the sum of its proper divisors (266364402932).

312132311332 is a wasteful number, since it uses less digits than its factorization.

312132311332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062735 (or 1062733 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 312132311332 its reverse (233113231213), we get a palindrome (545245542545).

The spelling of 312132311332 in words is "three hundred twelve billion, one hundred thirty-two million, three hundred eleven thousand, three hundred thirty-two".