2311200133220 has 48 divisors (see below), whose sum is σ = 5296344435648. Its totient is φ = 840183231360.

The previous prime is 2311200133219. The next prime is 2311200133241. The reversal of 2311200133220 is 223310021132.

It is a super-2 number, since 2×2311200133220² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2311200133192 and 2311200133201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849659 + ... + 2311778.

It is an arithmetic number, because the mean of its divisors is an integer number (110340509076).

Almost surely, 2^{2311200133220} is an apocalyptic number.

2311200133220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311200133220 is an abundant number, since it is smaller than the sum of its proper divisors (2985144302428).

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

2311200133220 is a wasteful number, since it uses less digits than its factorization.

2311200133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164780 (or 3164778 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2311200133220 its reverse (223310021132), we get a palindrome (2534510154352).

The spelling of 2311200133220 in words is "two trillion, three hundred eleven billion, two hundred million, one hundred thirty-three thousand, two hundred twenty".