31000204 has 6 divisors (see below), whose sum is σ = 54250364. Its totient is φ = 15500100.

The previous prime is 31000199. The next prime is 31000237. The reversal of 31000204 is 40200013.

It is a super-2 number, since 2×31000204² = 1922025296083232, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3875022 + ... + 3875029.

Almost surely, 2^31000204 is an apocalyptic number.

It is an amenable number.

31000204 is a deficient number, since it is larger than the sum of its proper divisors (23250160).

31000204 is a wasteful number, since it uses less digits than its factorization.

31000204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7750055 (or 7750053 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 31000204 is about 5567.7826825407. The cubic root of 31000204 is about 314.1387543147.

Adding to 31000204 its reverse (40200013), we get a palindrome (71200217).

The spelling of 31000204 in words is "thirty-one million, two hundred four", and thus it is an aban number.