1252304132021 has 2 divisors, whose sum is σ = 1252304132022. Its totient is φ = 1252304132020.

The previous prime is 1252304132011. The next prime is 1252304132033. The reversal of 1252304132021 is 1202314032521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 746342215921 + 505961916100 = 863911^2 + 711310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252304132021 - 2¹⁴ = 1252304115637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252304132011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626152066010 + 626152066011.

It is an arithmetic number, because the mean of its divisors is an integer number (626152066011).

Almost surely, 2^{1252304132021} is an apocalyptic number.

It is an amenable number.

1252304132021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252304132021 is an equidigital number, since it uses as much as digits as its factorization.

1252304132021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1252304132021 its reverse (1202314032521), we get a palindrome (2454618164542).

The spelling of 1252304132021 in words is "one trillion, two hundred fifty-two billion, three hundred four million, one hundred thirty-two thousand, twenty-one".