31530365230 has 64 divisors (see below), whose sum is σ = 71035937280. Its totient is φ = 9809691264.

The previous prime is 31530365197. The next prime is 31530365249. The reversal of 31530365230 is 3256303513.

It is a junction number, because it is equal to n+sod(n) for n = 31530365192 and 31530365201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239944 + ... + 347323.

It is an arithmetic number, because the mean of its divisors is an integer number (1109936520).

Almost surely, 2^31530365230 is an apocalyptic number.

31530365230 is an abundant number, since it is smaller than the sum of its proper divisors (39505572050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31530365230 is a wasteful number, since it uses less digits than its factorization.

31530365230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587353.

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 31530365230 its reverse (3256303513), we get a palindrome (34786668743).

The spelling of 31530365230 in words is "thirty-one billion, five hundred thirty million, three hundred sixty-five thousand, two hundred thirty".