31334412231 has 24 divisors (see below), whose sum is σ = 45494648784. Its totient is φ = 20781895680.

The previous prime is 31334412173. The next prime is 31334412269. The reversal of 31334412231 is 13221443313.

It is a happy number.

31334412231 is a `hidden beast` number, since 3 + 13 + 3 + 4 + 412 + 231 = 666.

It is not a de Polignac number, because 31334412231 - 2⁷ = 31334412103 is a prime.

It is a super-2 number, since 2×31334412231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31334412195 and 31334412204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31334412931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1904661 + ... + 1921041.

It is an arithmetic number, because the mean of its divisors is an integer number (1895610366).

Almost surely, 2^31334412231 is an apocalyptic number.

31334412231 is a deficient number, since it is larger than the sum of its proper divisors (14160236553).

31334412231 is a wasteful number, since it uses less digits than its factorization.

31334412231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17471 (or 17468 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 31334412231 its reverse (13221443313), we get a palindrome (44555855544).

The spelling of 31334412231 in words is "thirty-one billion, three hundred thirty-four million, four hundred twelve thousand, two hundred thirty-one".