31324122243 has 6 divisors (see below), whose sum is σ = 45245954364. Its totient is φ = 20882748156.

The previous prime is 31324122241. The next prime is 31324122281. The reversal of 31324122243 is 34222142313.

31324122243 is a `hidden beast` number, since 3 + 1 + 3 + 2 + 412 + 2 + 243 = 666.

It is not a de Polignac number, because 31324122243 - 2¹ = 31324122241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31324122241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1740229005 + ... + 1740229022.

It is an arithmetic number, because the mean of its divisors is an integer number (7540992394).

Almost surely, 2^31324122243 is an apocalyptic number.

31324122243 is a deficient number, since it is larger than the sum of its proper divisors (13921832121).

31324122243 is a wasteful number, since it uses less digits than its factorization.

31324122243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480458033 (or 3480458030 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 31324122243 its reverse (34222142313), we get a palindrome (65546264556).

The spelling of 31324122243 in words is "thirty-one billion, three hundred twenty-four million, one hundred twenty-two thousand, two hundred forty-three".