312021310232099 has 16 divisors (see below), whose sum is σ = 340850227132800. Its totient is φ = 283894300624896.

The previous prime is 312021310232077. The next prime is 312021310232123. The reversal of 312021310232099 is 990232013120213.

It is a happy number.

It is not a de Polignac number, because 312021310232099 - 2²⁴ = 312021293454883 is a prime.

It is a super-2 number, since 2×312021310232099² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312021310232039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255561494 + ... + 256779515.

It is an arithmetic number, because the mean of its divisors is an integer number (21303139195800).

Almost surely, 2^{312021310232099} is an apocalyptic number.

312021310232099 is a deficient number, since it is larger than the sum of its proper divisors (28828916900701).

312021310232099 is a wasteful number, since it uses less digits than its factorization.

312021310232099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512341694.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 312021310232099 in words is "three hundred twelve trillion, twenty-one billion, three hundred ten million, two hundred thirty-two thousand, ninety-nine".