2311326540 has 72 divisors (see below), whose sum is σ = 7174094928. Its totient is φ = 602017920.

The previous prime is 2311326533. The next prime is 2311326601. The reversal of 2311326540 is 456231132.

2311326540 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 3 + 2 + 654 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141571 + ... + 157050.

Almost surely, 2^2311326540 is an apocalyptic number.

2311326540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311326540 is an abundant number, since it is smaller than the sum of its proper divisors (4862768388).

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

2311326540 is a wasteful number, since it uses less digits than its factorization.

2311326540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298679 (or 298674 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2311326540 is about 48076.2575498551. The cubic root of 2311326540 is about 1322.1694009871.

Adding to 2311326540 its reverse (456231132), we get a palindrome (2767557672).

The spelling of 2311326540 in words is "two billion, three hundred eleven million, three hundred twenty-six thousand, five hundred forty".