312313311111001 has 4 divisors (see below), whose sum is σ = 323082735632100. Its totient is φ = 301543886589904.

The previous prime is 312313311110993. The next prime is 312313311111079. The reversal of 312313311111001 is 100111113313213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55490282672400 + 256823028438601 = 7449180^2 + 16025699^2 .

It is a cyclic number.

It is not a de Polignac number, because 312313311111001 - 2³ = 312313311110993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312313311111601) 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, 5384712260506 + ... + 5384712260563.

It is an arithmetic number, because the mean of its divisors is an integer number (80770683908025).

Almost surely, 2^{312313311111001} is an apocalyptic number.

It is an amenable number.

312313311111001 is a deficient number, since it is larger than the sum of its proper divisors (10769424521099).

312313311111001 is a wasteful number, since it uses less digits than its factorization.

312313311111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10769424521098.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 312313311111001 its reverse (100111113313213), we get a palindrome (412424424424214).

The spelling of 312313311111001 in words is "three hundred twelve trillion, three hundred thirteen billion, three hundred eleven million, one hundred eleven thousand, one".