31204020044 has 12 divisors (see below), whose sum is σ = 54655410600. Its totient is φ = 15588188448.

The previous prime is 31204020037. The next prime is 31204020059. The reversal of 31204020044 is 44002040213.

It is a junction number, because it is equal to n+sod(n) for n = 31204019998 and 31204020025.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3450314 + ... + 3459345.

It is an arithmetic number, because the mean of its divisors is an integer number (4554617550).

Almost surely, 2^31204020044 is an apocalyptic number.

It is an amenable number.

31204020044 is a deficient number, since it is larger than the sum of its proper divisors (23451390556).

31204020044 is a wasteful number, since it uses less digits than its factorization.

31204020044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910792 (or 6910790 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 31204020044 its reverse (44002040213), we get a palindrome (75206060257).

The spelling of 31204020044 in words is "thirty-one billion, two hundred four million, twenty thousand, forty-four".