31234031402 has 16 divisors (see below), whose sum is σ = 53546530560. Its totient is φ = 13385394288.

The previous prime is 31234031401. The next prime is 31234031461. The reversal of 31234031402 is 20413043213.

It is a super-2 number, since 2×31234031402² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31234031401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395423 + ... + 467789.

It is an arithmetic number, because the mean of its divisors is an integer number (3346658160).

Almost surely, 2^31234031402 is an apocalyptic number.

31234031402 is a deficient number, since it is larger than the sum of its proper divisors (22312499158).

31234031402 is a wasteful number, since it uses less digits than its factorization.

31234031402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103205.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31234031402 its reverse (20413043213), we get a palindrome (51647074615).

The spelling of 31234031402 in words is "thirty-one billion, two hundred thirty-four million, thirty-one thousand, four hundred two".