312220113030 has 64 divisors (see below), whose sum is σ = 951527969280. Its totient is φ = 71364596832.

The previous prime is 312220113011. The next prime is 312220113031. The reversal of 312220113030 is 30311022213.

312220113030 is a `hidden beast` number, since 312 + 220 + 1 + 130 + 3 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 312220112994 and 312220113012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312220113031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82596024 + ... + 82599803.

It is an arithmetic number, because the mean of its divisors is an integer number (14867624520).

Almost surely, 2^312220113030 is an apocalyptic number.

312220113030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312220113030 is an abundant number, since it is smaller than the sum of its proper divisors (639307856250).

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

312220113030 is a wasteful number, since it uses less digits than its factorization.

312220113030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165195850 (or 165195844 counting only the distinct ones).

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

Adding to 312220113030 its reverse (30311022213), we get a palindrome (342531135243).

The spelling of 312220113030 in words is "three hundred twelve billion, two hundred twenty million, one hundred thirteen thousand, thirty".