31330434402 has 48 divisors (see below), whose sum is σ = 68926366080. Its totient is φ = 10284078816.

The previous prime is 31330434397. The next prime is 31330434433. The reversal of 31330434402 is 20443403313.

31330434402 is a `hidden beast` number, since 3 + 13 + 304 + 344 + 0 + 2 = 666.

It is a super-2 number, since 2×31330434402² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270823 + ... + 368789.

It is an arithmetic number, because the mean of its divisors is an integer number (1435965960).

Almost surely, 2^31330434402 is an apocalyptic number.

31330434402 is an abundant number, since it is smaller than the sum of its proper divisors (37595931678).

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

31330434402 is a wasteful number, since it uses less digits than its factorization.

31330434402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98247 (or 98244 counting only the distinct ones).

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

Adding to 31330434402 its reverse (20443403313), we get a palindrome (51773837715).

The spelling of 31330434402 in words is "thirty-one billion, three hundred thirty million, four hundred thirty-four thousand, four hundred two".