2321145331 has 2 divisors, whose sum is σ = 2321145332. Its totient is φ = 2321145330.

The previous prime is 2321145313. The next prime is 2321145397. The reversal of 2321145331 is 1335411232.

It is a happy number.

Together with previous prime (2321145313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2321145331 - 2²³ = 2312756723 is a prime.

It is a super-2 number, since 2×2321145331² = 10775431295246199122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2321145296 and 2321145305.

It is not a weakly prime, because it can be changed into another prime (2321140331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160572665 + 1160572666.

It is an arithmetic number, because the mean of its divisors is an integer number (1160572666).

Almost surely, 2^2321145331 is an apocalyptic number.

2321145331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321145331 is an equidigital number, since it uses as much as digits as its factorization.

2321145331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 2321145331 is about 48178.2661684706. The cubic root of 2321145331 is about 1324.0390005260.

Adding to 2321145331 its reverse (1335411232), we get a palindrome (3656556563).

The spelling of 2321145331 in words is "two billion, three hundred twenty-one million, one hundred forty-five thousand, three hundred thirty-one".