31142331404 has 24 divisors (see below), whose sum is σ = 55134137520. Its totient is φ = 15389865216.

The previous prime is 31142331379. The next prime is 31142331449. The reversal of 31142331404 is 40413324113.

It is a happy number.

It is a super-2 number, since 2×31142331404² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914939 + ... + 948365.

It is an arithmetic number, because the mean of its divisors is an integer number (2297255730).

Almost surely, 2^31142331404 is an apocalyptic number.

It is an amenable number.

31142331404 is a deficient number, since it is larger than the sum of its proper divisors (23991806116).

31142331404 is a wasteful number, since it uses less digits than its factorization.

31142331404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36137 (or 36135 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31142331404 its reverse (40413324113), we get a palindrome (71555655517).

The spelling of 31142331404 in words is "thirty-one billion, one hundred forty-two million, three hundred thirty-one thousand, four hundred four".