31023021404 has 24 divisors (see below), whose sum is σ = 57579556608. Its totient is φ = 14574758400.

The previous prime is 31023021397. The next prime is 31023021467. The reversal of 31023021404 is 40412032013.

It is a congruent number.

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, 338684 + ... + 420419.

It is an arithmetic number, because the mean of its divisors is an integer number (2399148192).

Almost surely, 2^31023021404 is an apocalyptic number.

31023021404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31023021404 is a deficient number, since it is larger than the sum of its proper divisors (26556535204).

31023021404 is a wasteful number, since it uses less digits than its factorization.

31023021404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759725 (or 759723 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31023021404 its reverse (40412032013), we get a palindrome (71435053417).

The spelling of 31023021404 in words is "thirty-one billion, twenty-three million, twenty-one thousand, four hundred four".