31330220204 has 6 divisors (see below), whose sum is σ = 54827885364. Its totient is φ = 15665110100.

The previous prime is 31330220191. The next prime is 31330220213. The reversal of 31330220204 is 40202203313.

It is a super-2 number, since 2×31330220204² (a number of 22 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 3916277522 + ... + 3916277529.

It is an arithmetic number, because the mean of its divisors is an integer number (9137980894).

Almost surely, 2^31330220204 is an apocalyptic number.

It is an amenable number.

31330220204 is a deficient number, since it is larger than the sum of its proper divisors (23497665160).

31330220204 is a wasteful number, since it uses less digits than its factorization.

31330220204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832555055 (or 7832555053 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31330220204 its reverse (40202203313), we get a palindrome (71532423517).

The spelling of 31330220204 in words is "thirty-one billion, three hundred thirty million, two hundred twenty thousand, two hundred four".