31012300538 has 8 divisors (see below), whose sum is σ = 47396157588. Its totient is φ = 15213581344.

The previous prime is 31012300531. The next prime is 31012300549. The reversal of 31012300538 is 83500321013.

It can be written as a sum of positive squares in 2 ways, for example, as 30598055929 + 414244609 = 174923^2 + 20353^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31012300531) 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, 146284331 + ... + 146284542.

Almost surely, 2^31012300538 is an apocalyptic number.

31012300538 is a deficient number, since it is larger than the sum of its proper divisors (16383857050).

31012300538 is a wasteful number, since it uses less digits than its factorization.

31012300538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292568928.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 31012300538 in words is "thirty-one billion, twelve million, three hundred thousand, five hundred thirty-eight".