2321720955 has 32 divisors (see below), whose sum is σ = 4239067200. Its totient is φ = 1204782336.

The previous prime is 2321720893. The next prime is 2321720971. The reversal of 2321720955 is 5590271232.

2321720955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2321720955 - 2¹⁷ = 2321589883 is a prime.

It is a super-2 number, since 2×2321720955² = 10780776385772224050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227410 + ... + 237399.

It is an arithmetic number, because the mean of its divisors is an integer number (132470850).

Almost surely, 2^2321720955 is an apocalyptic number.

2321720955 is a deficient number, since it is larger than the sum of its proper divisors (1917346245).

2321720955 is a wasteful number, since it uses less digits than its factorization.

2321720955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464860 (or 464854 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 2321720955 is about 48184.2396951534. The cubic root of 2321720955 is about 1324.1484415596.

The spelling of 2321720955 in words is "two billion, three hundred twenty-one million, seven hundred twenty thousand, nine hundred fifty-five".