2123310331 has 2 divisors, whose sum is σ = 2123310332. Its totient is φ = 2123310330.

The previous prime is 2123310317. The next prime is 2123310361. The reversal of 2123310331 is 1330133212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123310331 - 2²¹ = 2121213179 is a prime.

It is a super-2 number, since 2×2123310331² = 9016893523462659122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2123310299 and 2123310308.

It is not a weakly prime, because it can be changed into another prime (2123310361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061655165 + 1061655166.

It is an arithmetic number, because the mean of its divisors is an integer number (1061655166).

Almost surely, 2^2123310331 is an apocalyptic number.

2123310331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123310331 is an equidigital number, since it uses as much as digits as its factorization.

2123310331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2123310331 is about 46079.3916083969. The cubic root of 2123310331 is about 1285.2999508722.

Adding to 2123310331 its reverse (1330133212), we get a palindrome (3453443543).

The spelling of 2123310331 in words is "two billion, one hundred twenty-three million, three hundred ten thousand, three hundred thirty-one".