2311325620 has 24 divisors (see below), whose sum is σ = 4984968744. Its totient is φ = 899542656.

The previous prime is 2311325609. The next prime is 2311325629. The reversal of 2311325620 is 265231132.

It can be written as a sum of positive squares in 4 ways, for example, as 1337511184 + 973814436 = 36572^2 + 31206^2 .

It is a super-2 number, since 2×2311325620² = 10684452243336768800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311325629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560967 + ... + 1562446.

It is an arithmetic number, because the mean of its divisors is an integer number (207707031).

Almost surely, 2^2311325620 is an apocalyptic number.

2311325620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311325620 is an abundant number, since it is smaller than the sum of its proper divisors (2673643124).

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

2311325620 is a wasteful number, since it uses less digits than its factorization.

2311325620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123459 (or 3123457 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2311325620 is about 48076.2479817217. The cubic root of 2311325620 is about 1322.1692255617.

Adding to 2311325620 its reverse (265231132), we get a palindrome (2576556752).

The spelling of 2311325620 in words is "two billion, three hundred eleven million, three hundred twenty-five thousand, six hundred twenty".