312012213011 has 8 divisors (see below), whose sum is σ = 325292243760. Its totient is φ = 299005997472.

The previous prime is 312012213001. The next prime is 312012213049. The reversal of 312012213011 is 110312210213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312012213011 is a prime.

It is a super-2 number, since 2×312012213011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312012213001) 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, 68451476 + ... + 68456033.

It is an arithmetic number, because the mean of its divisors is an integer number (40661530470).

Almost surely, 2^312012213011 is an apocalyptic number.

312012213011 is a deficient number, since it is larger than the sum of its proper divisors (13280030749).

312012213011 is a wasteful number, since it uses less digits than its factorization.

312012213011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136907605.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 312012213011 its reverse (110312210213), we get a palindrome (422324423224).

The spelling of 312012213011 in words is "three hundred twelve billion, twelve million, two hundred thirteen thousand, eleven".