2322131281 has 2 divisors, whose sum is σ = 2322131282. Its totient is φ = 2322131280.

The previous prime is 2322131261. The next prime is 2322131311. The reversal of 2322131281 is 1821312232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1722665025 + 599466256 = 41505^2 + 24484^2 .

It is a cyclic number.

It is not a de Polignac number, because 2322131281 - 2⁷ = 2322131153 is a prime.

It is a super-2 number, since 2×2322131281² = 10784587372397401922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2322131261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1161065640 + 1161065641.

It is an arithmetic number, because the mean of its divisors is an integer number (1161065641).

Almost surely, 2^2322131281 is an apocalyptic number.

It is an amenable number.

2322131281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2322131281 is an equidigital number, since it uses as much as digits as its factorization.

2322131281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 2322131281 is about 48188.4973930501. The cubic root of 2322131281 is about 1324.2264441187.

The spelling of 2322131281 in words is "two billion, three hundred twenty-two million, one hundred thirty-one thousand, two hundred eighty-one".