31200003012 has 12 divisors (see below), whose sum is σ = 72800007056. Its totient is φ = 10400001000.

The previous prime is 31200003007. The next prime is 31200003031. The reversal of 31200003012 is 21030000213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 2600000251 = 31200003012 / (3 + 1 + 2 + 0 + 0 + 0 + 0 + 3 + 0 + 1 + 2).

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, 1300000114 + ... + 1300000137.

Almost surely, 2^31200003012 is an apocalyptic number.

It is an amenable number.

31200003012 is an abundant number, since it is smaller than the sum of its proper divisors (41600004044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31200003012 is a wasteful number, since it uses less digits than its factorization.

31200003012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600000258 (or 2600000256 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 31200003012 its reverse (21030000213), we get a palindrome (52230003225).

The spelling of 31200003012 in words is "thirty-one billion, two hundred million, three thousand, twelve".