311232000003121 has 4 divisors (see below), whose sum is σ = 314140710283632. Its totient is φ = 308323289722612.

The previous prime is 311232000003013. The next prime is 311232000003151. The reversal of 311232000003121 is 121300000232113.

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 311232000003121 - 2²⁹ = 311231463132209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311232000003151) 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, 1454355140095 + ... + 1454355140308.

It is an arithmetic number, because the mean of its divisors is an integer number (78535177570908).

Almost surely, 2^{311232000003121} is an apocalyptic number.

It is an amenable number.

311232000003121 is a deficient number, since it is larger than the sum of its proper divisors (2908710280511).

311232000003121 is a wasteful number, since it uses less digits than its factorization.

311232000003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908710280510.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 311232000003121 its reverse (121300000232113), we get a palindrome (432532000235234).

The spelling of 311232000003121 in words is "three hundred eleven trillion, two hundred thirty-two billion, three thousand, one hundred twenty-one".