311321332031101 has 4 divisors (see below), whose sum is σ = 355795808035552. Its totient is φ = 266846856026652.

The previous prime is 311321332031093. The next prime is 311321332031159. The reversal of 311321332031101 is 101130233123113.

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.

It is a cyclic number.

It is not a de Polignac number, because 311321332031101 - 2³ = 311321332031093 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 (311321332031161) 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, 22237238002215 + ... + 22237238002228.

It is an arithmetic number, because the mean of its divisors is an integer number (88948952008888).

Almost surely, 2^{311321332031101} is an apocalyptic number.

It is an amenable number.

311321332031101 is a deficient number, since it is larger than the sum of its proper divisors (44474476004451).

311321332031101 is an equidigital number, since it uses as much as digits as its factorization.

311321332031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44474476004450.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 311321332031101 its reverse (101130233123113), we get a palindrome (412451565154214).

The spelling of 311321332031101 in words is "three hundred eleven trillion, three hundred twenty-one billion, three hundred thirty-two million, thirty-one thousand, one hundred one".