31212000013230 has 128 divisors (see below), whose sum is σ = 83362983580800. Its totient is φ = 8310110054400.

The previous prime is 31212000013213. The next prime is 31212000013267. The reversal of 31212000013230 is 3231000021213.

31212000013230 is a `hidden beast` number, since 312 + 120 + 0 + 0 + 0 + 1 + 3 + 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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 566340916 + ... + 566396024.

It is an arithmetic number, because the mean of its divisors is an integer number (651273309225).

Almost surely, 2^{31212000013230} is an apocalyptic number.

31212000013230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31212000013230 is an abundant number, since it is smaller than the sum of its proper divisors (52150983567570).

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

31212000013230 is a wasteful number, since it uses less digits than its factorization.

31212000013230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58387 (or 58381 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31212000013230 its reverse (3231000021213), we get a palindrome (34443000034443).

The spelling of 31212000013230 in words is "thirty-one trillion, two hundred twelve billion, thirteen thousand, two hundred thirty".