31310120228 has 12 divisors (see below), whose sum is σ = 54822071472. Its totient is φ = 15646671240.

The previous prime is 31310120227. The next prime is 31310120269. The reversal of 31310120228 is 82202101313.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31310120227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088818 + ... + 2103753.

It is an arithmetic number, because the mean of its divisors is an integer number (4568505956).

Almost surely, 2^31310120228 is an apocalyptic number.

It is an amenable number.

31310120228 is a deficient number, since it is larger than the sum of its proper divisors (23511951244).

31310120228 is a wasteful number, since it uses less digits than its factorization.

31310120228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194442 (or 4194440 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 31310120228 in words is "thirty-one billion, three hundred ten million, one hundred twenty thousand, two hundred twenty-eight".