2123893801 has 2 divisors, whose sum is σ = 2123893802. Its totient is φ = 2123893800.

The previous prime is 2123893789. The next prime is 2123893817. The reversal of 2123893801 is 1083983212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1923699600 + 200194201 = 43860^2 + 14149^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123893801 - 2²⁵ = 2090339369 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123893831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061946900 + 1061946901.

It is an arithmetic number, because the mean of its divisors is an integer number (1061946901).

Almost surely, 2^2123893801 is an apocalyptic number.

It is an amenable number.

2123893801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123893801 is an equidigital number, since it uses as much as digits as its factorization.

2123893801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 2123893801 is about 46085.7223117963. The cubic root of 2123893801 is about 1285.4176704019.

The spelling of 2123893801 in words is "two billion, one hundred twenty-three million, eight hundred ninety-three thousand, eight hundred one".