31313200000230 has 96 divisors (see below), whose sum is σ = 86573370297024. Its totient is φ = 7825269516288.

The previous prime is 31313200000193. The next prime is 31313200000231. The reversal of 31313200000230 is 3200000231313.

31313200000230 is a `hidden beast` number, since 313 + 1 + 320 + 0 + 0 + 0 + 0 + 2 + 30 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313200000231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43562274 + ... + 44275253.

It is an arithmetic number, because the mean of its divisors is an integer number (901805940594).

Almost surely, 2^{31313200000230} is an apocalyptic number.

31313200000230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31313200000230 is an abundant number, since it is smaller than the sum of its proper divisors (55260170296794).

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

31313200000230 is a wasteful number, since it uses less digits than its factorization.

31313200000230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87837790 (or 87837787 counting only the distinct ones).

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

Adding to 31313200000230 its reverse (3200000231313), we get a palindrome (34513200231543).

The spelling of 31313200000230 in words is "thirty-one trillion, three hundred thirteen billion, two hundred million, two hundred thirty", and thus it is an aban number.