31423213234 has 12 divisors (see below), whose sum is σ = 54830300814. Its totient is φ = 13467091344.

The previous prime is 31423213207. The next prime is 31423213259. The reversal of 31423213234 is 43231232413.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30882790225 + 540423009 = 175735^2 + 23247^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160322419 + ... + 160322614.

Almost surely, 2^31423213234 is an apocalyptic number.

31423213234 is a deficient number, since it is larger than the sum of its proper divisors (23407087580).

31423213234 is a wasteful number, since it uses less digits than its factorization.

31423213234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320645049 (or 320645042 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

Adding to 31423213234 its reverse (43231232413), we get a palindrome (74654445647).

The spelling of 31423213234 in words is "thirty-one billion, four hundred twenty-three million, two hundred thirteen thousand, two hundred thirty-four".