2310311122220 has 12 divisors (see below), whose sum is σ = 4851653356704. Its totient is φ = 924124448880.

The previous prime is 2310311122183. The next prime is 2310311122303. The reversal of 2310311122220 is 222211130132.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 115515556111 = 2310311122220 / (2 + 3 + 1 + 0 + 3 + 1 + 1 + 1 + 2 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2310311122192 and 2310311122201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57757778036 + ... + 57757778075.

It is an arithmetic number, because the mean of its divisors is an integer number (404304446392).

Almost surely, 2^{2310311122220} is an apocalyptic number.

2310311122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2310311122220 is an abundant number, since it is smaller than the sum of its proper divisors (2541342234484).

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

2310311122220 is a wasteful number, since it uses less digits than its factorization.

2310311122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115515556120 (or 115515556118 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2310311122220 its reverse (222211130132), we get a palindrome (2532522252352).

The spelling of 2310311122220 in words is "two trillion, three hundred ten billion, three hundred eleven million, one hundred twenty-two thousand, two hundred twenty".