312133303230 has 128 divisors (see below), whose sum is σ = 871180047360. Its totient is φ = 70092656640.

The previous prime is 312133303199. The next prime is 312133303243. The reversal of 312133303230 is 32303331213.

It is a super-2 number, since 2×312133303230² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312133303230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23051022 + ... + 23064558.

It is an arithmetic number, because the mean of its divisors is an integer number (6806094120).

Almost surely, 2^312133303230 is an apocalyptic number.

312133303230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 312133303230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435590023680).

312133303230 is an abundant number, since it is smaller than the sum of its proper divisors (559046744130).

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

312133303230 is a wasteful number, since it uses less digits than its factorization.

312133303230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15474.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 312133303230 its reverse (32303331213), we get a palindrome (344436634443).

The spelling of 312133303230 in words is "three hundred twelve billion, one hundred thirty-three million, three hundred three thousand, two hundred thirty".