31347400228 has 12 divisors (see below), whose sum is σ = 54902522752. Its totient is φ = 15660965160.

The previous prime is 31347400213. The next prime is 31347400267. The reversal of 31347400228 is 82200474313.

It is a junction number, because it is equal to n+sod(n) for n = 31347400193 and 31347400202.

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, 3178200 + ... + 3188047.

Almost surely, 2^31347400228 is an apocalyptic number.

It is an amenable number.

31347400228 is a deficient number, since it is larger than the sum of its proper divisors (23555122524).

31347400228 is a wasteful number, since it uses less digits than its factorization.

31347400228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6367482 (or 6367480 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 31347400228 in words is "thirty-one billion, three hundred forty-seven million, four hundred thousand, two hundred twenty-eight".