31302130230 has 48 divisors (see below), whose sum is σ = 93012045984. Its totient is φ = 7154772480.

The previous prime is 31302130213. The next prime is 31302130261. The reversal of 31302130230 is 3203120313.

31302130230 is a `hidden beast` number, since 3 + 1 + 302 + 130 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24842331 + ... + 24843590.

It is an arithmetic number, because the mean of its divisors is an integer number (1937750958).

Almost surely, 2^31302130230 is an apocalyptic number.

31302130230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31302130230 is an abundant number, since it is smaller than the sum of its proper divisors (61709915754).

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

31302130230 is a wasteful number, since it uses less digits than its factorization.

31302130230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49685941 (or 49685938 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31302130230 its reverse (3203120313), we get a palindrome (34505250543).

The spelling of 31302130230 in words is "thirty-one billion, three hundred two million, one hundred thirty thousand, two hundred thirty".