312011232113 has 16 divisors (see below), whose sum is σ = 380315741184. Its totient is φ = 249869253120.

The previous prime is 312011232083. The next prime is 312011232119. The reversal of 312011232113 is 311232110213.

It is a happy number.

It is not a de Polignac number, because 312011232113 - 2¹⁴ = 312011215729 is a prime.

It is a super-3 number, since 3×312011232113³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312011232119) 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 15 ways as a sum of consecutive naturals, for example, 9552833 + ... + 9585438.

It is an arithmetic number, because the mean of its divisors is an integer number (23769733824).

Almost surely, 2^312011232113 is an apocalyptic number.

It is an amenable number.

312011232113 is a deficient number, since it is larger than the sum of its proper divisors (68304509071).

312011232113 is a wasteful number, since it uses less digits than its factorization.

312011232113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19138432.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 312011232113 its reverse (311232110213), we get a palindrome (623243342326).

The spelling of 312011232113 in words is "three hundred twelve billion, eleven million, two hundred thirty-two thousand, one hundred thirteen".