31311334323 has 20 divisors (see below), whose sum is σ = 48037880880. Its totient is φ = 20310052752.

The previous prime is 31311334261. The next prime is 31311334331. The reversal of 31311334323 is 32343311313.

31311334323 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 1 + 334 + 323 = 666.

It is not a de Polignac number, because 31311334323 - 2⁹ = 31311333811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31311338323) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5220783 + ... + 5226776.

It is an arithmetic number, because the mean of its divisors is an integer number (2401894044).

Almost surely, 2^31311334323 is an apocalyptic number.

31311334323 is a deficient number, since it is larger than the sum of its proper divisors (16726546557).

31311334323 is a wasteful number, since it uses less digits than its factorization.

31311334323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10447608 (or 10447599 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 31311334323 its reverse (32343311313), we get a palindrome (63654645636).

The spelling of 31311334323 in words is "thirty-one billion, three hundred eleven million, three hundred thirty-four thousand, three hundred twenty-three".