31103200230 has 16 divisors (see below), whose sum is σ = 74647680624. Its totient is φ = 8294186720.

The previous prime is 31103200211. The next prime is 31103200237. The reversal of 31103200230 is 3200230113.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103200237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518386641 + ... + 518386700.

It is an arithmetic number, because the mean of its divisors is an integer number (4665480039).

Almost surely, 2^31103200230 is an apocalyptic number.

31103200230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31103200230 is an abundant number, since it is smaller than the sum of its proper divisors (43544480394).

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

31103200230 is a wasteful number, since it uses less digits than its factorization.

31103200230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036773351.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31103200230 its reverse (3200230113), we get a palindrome (34303430343).

The spelling of 31103200230 in words is "thirty-one billion, one hundred three million, two hundred thousand, two hundred thirty".