2311099252900 has 81 divisors (see below), whose sum is σ = 5093299326339. Its totient is φ = 910240752960.

The previous prime is 2311099252897. The next prime is 2311099252937. The reversal of 2311099252900 is 92529901132.

It is a happy number.

The square root of 2311099252900 is 1520230.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1002765909924 + 1308333342976 = 1001382^2 + 1143824^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1018552966 + ... + 1018555234.

Almost surely, 2^{2311099252900} is an apocalyptic number.

2311099252900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2311099252900 is the 1520230-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2311099252900

2311099252900 is an abundant number, since it is smaller than the sum of its proper divisors (2782200073439).

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

2311099252900 is an frugal number, since it uses more digits than its factorization.

2311099252900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The spelling of 2311099252900 in words is "two trillion, three hundred eleven billion, ninety-nine million, two hundred fifty-two thousand, nine hundred".