313131332233401 has 32 divisors (see below), whose sum is σ = 456152454291456. Its totient is φ = 189489653640000.

The previous prime is 313131332233367. The next prime is 313131332233469. The reversal of 313131332233401 is 104332233131313.

It is a happy number.

It is not a de Polignac number, because 313131332233401 - 2¹⁸ = 313131331971257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (313131332234401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273021736 + ... + 274166246.

It is an arithmetic number, because the mean of its divisors is an integer number (14254764196608).

Almost surely, 2^{313131332233401} is an apocalyptic number.

It is an amenable number.

313131332233401 is a deficient number, since it is larger than the sum of its proper divisors (143021122058055).

313131332233401 is a wasteful number, since it uses less digits than its factorization.

313131332233401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157053.

The product of its (nonzero) digits is 34992, while the sum is 33.

Adding to 313131332233401 its reverse (104332233131313), we get a palindrome (417463565364714).

The spelling of 313131332233401 in words is "three hundred thirteen trillion, one hundred thirty-one billion, three hundred thirty-two million, two hundred thirty-three thousand, four hundred one".