31334223402 has 24 divisors (see below), whose sum is σ = 67903840836. Its totient is φ = 10442737536.

The previous prime is 31334223317. The next prime is 31334223457. The reversal of 31334223402 is 20432243313.

31334223402 is a `hidden beast` number, since 3 + 1 + 3 + 34 + 223 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26484633081 + 4849590321 = 162741^2 + 69639^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68973 + ... + 259664.

Almost surely, 2^31334223402 is an apocalyptic number.

31334223402 is an abundant number, since it is smaller than the sum of its proper divisors (36569617434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31334223402 is a wasteful number, since it uses less digits than its factorization.

31334223402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333942 (or 333939 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 31334223402 its reverse (20432243313), we get a palindrome (51766466715).

The spelling of 31334223402 in words is "thirty-one billion, three hundred thirty-four million, two hundred twenty-three thousand, four hundred two".