31530640430350 has 12 divisors (see below), whose sum is σ = 58646991200544. Its totient is φ = 12612256172120.

The previous prime is 31530640430297. The next prime is 31530640430351. The reversal of 31530640430350 is 5303404603513.

It is a super-2 number, since 2×31530640430350² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31530640430351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315306404254 + ... + 315306404353.

It is an arithmetic number, because the mean of its divisors is an integer number (4887249266712).

Almost surely, 2^{31530640430350} is an apocalyptic number.

31530640430350 is a deficient number, since it is larger than the sum of its proper divisors (27116350770194).

31530640430350 is a wasteful number, since it uses less digits than its factorization.

31530640430350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630612808619 (or 630612808614 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 37.

The spelling of 31530640430350 in words is "thirty-one trillion, five hundred thirty billion, six hundred forty million, four hundred thirty thousand, three hundred fifty".