531313306112 has 20 divisors (see below), whose sum is σ = 1061588891946. Its totient is φ = 265656652800.

The previous prime is 531313306099. The next prime is 531313306127. The reversal of 531313306112 is 211603313135.

It can be written as a sum of positive squares in only one way, i.e., 490470512896 + 40842793216 = 700336^2 + 202096^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 518860139 + ... + 518861162.

Almost surely, 2^531313306112 is an apocalyptic number.

It is an amenable number.

531313306112 is a deficient number, since it is larger than the sum of its proper divisors (530275585834).

531313306112 is an equidigital number, since it uses as much as digits as its factorization.

531313306112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037721319 (or 1037721303 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 29.

Adding to 531313306112 its reverse (211603313135), we get a palindrome (742916619247).

The spelling of 531313306112 in words is "five hundred thirty-one billion, three hundred thirteen million, three hundred six thousand, one hundred twelve".