2123563331 has 2 divisors, whose sum is σ = 2123563332. Its totient is φ = 2123563330.

The previous prime is 2123563319. The next prime is 2123563339. The reversal of 2123563331 is 1333653212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123563331 is a prime.

It is a super-2 number, since 2×2123563331² = 9019042441535631122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2123563294 and 2123563303.

It is not a weakly prime, because it can be changed into another prime (2123563339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061781665 + 1061781666.

It is an arithmetic number, because the mean of its divisors is an integer number (1061781666).

Almost surely, 2^2123563331 is an apocalyptic number.

2123563331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123563331 is an equidigital number, since it uses as much as digits as its factorization.

2123563331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 29.

The square root of 2123563331 is about 46082.1367885648. The cubic root of 2123563331 is about 1285.3509982027.

The spelling of 2123563331 in words is "two billion, one hundred twenty-three million, five hundred sixty-three thousand, three hundred thirty-one".