2311325646 has 16 divisors (see below), whose sum is σ = 5283030144. Its totient is φ = 660378744.

The previous prime is 2311325633. The next prime is 2311325659. The reversal of 2311325646 is 6465231132.

It is an interprime number because it is at equal distance from previous prime (2311325633) and next prime (2311325659).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27515740 + ... + 27515823.

It is an arithmetic number, because the mean of its divisors is an integer number (330189384).

Almost surely, 2^2311325646 is an apocalyptic number.

2311325646 is an abundant number, since it is smaller than the sum of its proper divisors (2971704498).

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

2311325646 is a wasteful number, since it uses less digits than its factorization.

2311325646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55031575.

The product of its digits is 25920, while the sum is 33.

The square root of 2311325646 is about 48076.2482521255. The cubic root of 2311325646 is about 1322.1692305194.

Adding to 2311325646 its reverse (6465231132), we get a palindrome (8776556778).

The spelling of 2311325646 in words is "two billion, three hundred eleven million, three hundred twenty-five thousand, six hundred forty-six".