1252313003021 has 16 divisors (see below), whose sum is σ = 1296431814720. Its totient is φ = 1209020152320.

The previous prime is 1252313002981. The next prime is 1252313003027. The reversal of 1252313003021 is 1203003132521.

It is a cyclic number.

It is not a de Polignac number, because 1252313003021 - 2¹⁰ = 1252313001997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252313003027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2043581 + ... + 2584733.

It is an arithmetic number, because the mean of its divisors is an integer number (81026988420).

Almost surely, 2^{1252313003021} is an apocalyptic number.

It is an amenable number.

1252313003021 is a deficient number, since it is larger than the sum of its proper divisors (44118811699).

1252313003021 is an equidigital number, since it uses as much as digits as its factorization.

1252313003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541916.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 1252313003021 its reverse (1203003132521), we get a palindrome (2455316135542).

The spelling of 1252313003021 in words is "one trillion, two hundred fifty-two billion, three hundred thirteen million, three thousand, twenty-one".