31212003404 has 6 divisors (see below), whose sum is σ = 54621005964. Its totient is φ = 15606001700.

The previous prime is 31212003379. The next prime is 31212003497. The reversal of 31212003404 is 40430021213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3901500422 + ... + 3901500429.

It is an arithmetic number, because the mean of its divisors is an integer number (9103500994).

Almost surely, 2^31212003404 is an apocalyptic number.

It is an amenable number.

31212003404 is a deficient number, since it is larger than the sum of its proper divisors (23409002560).

31212003404 is a wasteful number, since it uses less digits than its factorization.

31212003404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7803000855 (or 7803000853 counting only the distinct ones).

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

Adding to 31212003404 its reverse (40430021213), we get a palindrome (71642024617).

The spelling of 31212003404 in words is "thirty-one billion, two hundred twelve million, three thousand, four hundred four".