312231311101 has 4 divisors (see below), whose sum is σ = 312247688512. Its totient is φ = 312214933692.

The previous prime is 312231311033. The next prime is 312231311201. The reversal of 312231311101 is 101113132213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101113132213 = 43 ⋅2351468191.

It is a cyclic number.

It is not a de Polignac number, because 312231311101 - 2²³ = 312222922493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312231311201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8160075 + ... + 8198248.

It is an arithmetic number, because the mean of its divisors is an integer number (78061922128).

Almost surely, 2^312231311101 is an apocalyptic number.

It is an amenable number.

312231311101 is a deficient number, since it is larger than the sum of its proper divisors (16377411).

312231311101 is a wasteful number, since it uses less digits than its factorization.

312231311101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377410.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 312231311101 its reverse (101113132213), we get a palindrome (413344443314).

The spelling of 312231311101 in words is "three hundred twelve billion, two hundred thirty-one million, three hundred eleven thousand, one hundred one".