312101023113031 has 4 divisors (see below), whose sum is σ = 312262482516472. Its totient is φ = 311939563709592.

The previous prime is 312101023113029. The next prime is 312101023113037. The reversal of 312101023113031 is 130311320101213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312101023113031 - 2¹ = 312101023113029 is a prime.

It is a super-2 number, since 2×312101023113031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312101023112993 and 312101023113011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312101023113037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80729698821 + ... + 80729702686.

It is an arithmetic number, because the mean of its divisors is an integer number (78065620629118).

Almost surely, 2^{312101023113031} is an apocalyptic number.

312101023113031 is a deficient number, since it is larger than the sum of its proper divisors (161459403441).

312101023113031 is a wasteful number, since it uses less digits than its factorization.

312101023113031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161459403440.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 312101023113031 its reverse (130311320101213), we get a palindrome (442412343214244).

The spelling of 312101023113031 in words is "three hundred twelve trillion, one hundred one billion, twenty-three million, one hundred thirteen thousand, thirty-one".