2321135920 has 40 divisors (see below), whose sum is σ = 5398935696. Its totient is φ = 928059648.

The previous prime is 2321135909. The next prime is 2321135951. The reversal of 2321135920 is 295311232.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2321135920² = 10775343918228492800, which contains 22 as substring.

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, 248454 + ... + 257626.

Almost surely, 2^2321135920 is an apocalyptic number.

2321135920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321135920 is an abundant number, since it is smaller than the sum of its proper divisors (3077799776).

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

2321135920 is a wasteful number, since it uses less digits than its factorization.

2321135920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12349 (or 12343 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2321135920 is about 48178.1684998506. The cubic root of 2321135920 is about 1324.0372111008.

The spelling of 2321135920 in words is "two billion, three hundred twenty-one million, one hundred thirty-five thousand, nine hundred twenty".