2123042575825 has 6 divisors (see below), whose sum is σ = 2632572794054. Its totient is φ = 1698434060640.

The previous prime is 2123042575763. The next prime is 2123042575847. The reversal of 2123042575825 is 5285752403212.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 761442976449 + 1361599599376 = 872607^2 + 1166876^2 .

It is not a de Polignac number, because 2123042575825 - 2¹⁵ = 2123042543057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42460851492 + ... + 42460851541.

Almost surely, 2^{2123042575825} is an apocalyptic number.

2123042575825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2123042575825 is a deficient number, since it is larger than the sum of its proper divisors (509530218229).

2123042575825 is an equidigital number, since it uses as much as digits as its factorization.

2123042575825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84921703043 (or 84921703038 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 46.

The spelling of 2123042575825 in words is "two trillion, one hundred twenty-three billion, forty-two million, five hundred seventy-five thousand, eight hundred twenty-five".