31204203124 has 24 divisors (see below), whose sum is σ = 54900505800. Its totient is φ = 15518562816.

The previous prime is 31204203119. The next prime is 31204203133. The reversal of 31204203124 is 42130240213.

It can be written as a sum of positive squares in 4 ways, for example, as 12798396900 + 18405806224 = 113130^2 + 135668^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31204203095 and 31204203104.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 552552 + ... + 606400.

It is an arithmetic number, because the mean of its divisors is an integer number (2287521075).

Almost surely, 2^31204203124 is an apocalyptic number.

It is an amenable number.

31204203124 is a deficient number, since it is larger than the sum of its proper divisors (23696302676).

31204203124 is a wasteful number, since it uses less digits than its factorization.

31204203124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54627 (or 54625 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31204203124 its reverse (42130240213), we get a palindrome (73334443337).

The spelling of 31204203124 in words is "thirty-one billion, two hundred four million, two hundred three thousand, one hundred twenty-four".