312011131330 has 16 divisors (see below), whose sum is σ = 561684444984. Its totient is φ = 124790139520.

The previous prime is 312011131321. The next prime is 312011131339. The reversal of 312011131330 is 33131110213.

It is an interprime number because it is at equal distance from previous prime (312011131321) and next prime (312011131339).

It can be written as a sum of positive squares in 4 ways, for example, as 266279736529 + 45731394801 = 516023^2 + 213849^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312011131298 and 312011131307.

It is not an unprimeable number, because it can be changed into a prime (312011131339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1697347 + ... + 1872166.

Almost surely, 2^312011131330 is an apocalyptic number.

312011131330 is a deficient number, since it is larger than the sum of its proper divisors (249673313654).

312011131330 is a wasteful number, since it uses less digits than its factorization.

312011131330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578261.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 312011131330 its reverse (33131110213), we get a palindrome (345142241543).

The spelling of 312011131330 in words is "three hundred twelve billion, eleven million, one hundred thirty-one thousand, three hundred thirty".