312133231330 has 16 divisors (see below), whose sum is σ = 562517563320. Its totient is φ = 124702682112.

The previous prime is 312133231283. The next prime is 312133231339. The reversal of 312133231330 is 33132331213.

It can be written as a sum of positive squares in 4 ways, for example, as 149918419249 + 162214812081 = 387193^2 + 402759^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312133231295 and 312133231304.

It is not an unprimeable number, because it can be changed into a prime (312133231339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18817599 + ... + 18834178.

Almost surely, 2^312133231330 is an apocalyptic number.

312133231330 is a deficient number, since it is larger than the sum of its proper divisors (250384331990).

312133231330 is a wasteful number, since it uses less digits than its factorization.

312133231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37652613.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 312133231330 its reverse (33132331213), we get a palindrome (345265562543).

The spelling of 312133231330 in words is "three hundred twelve billion, one hundred thirty-three million, two hundred thirty-one thousand, three hundred thirty".