1252541243241 has 12 divisors (see below), whose sum is σ = 1813347490240. Its totient is φ = 833125380120.

The previous prime is 1252541243167. The next prime is 1252541243249. The reversal of 1252541243241 is 1423421452521.

1252541243241 is a `hidden beast` number, since 1 + 2 + 52 + 541 + 2 + 43 + 24 + 1 = 666.

It is not a de Polignac number, because 1252541243241 - 2²³ = 1252532854633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252541243196 and 1252541243205.

It is not an unprimeable number, because it can be changed into a prime (1252541243249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158505445 + ... + 158513346.

Almost surely, 2^{1252541243241} is an apocalyptic number.

It is an amenable number.

1252541243241 is a deficient number, since it is larger than the sum of its proper divisors (560806246999).

1252541243241 is a wasteful number, since it uses less digits than its factorization.

1252541243241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317019236 (or 317019233 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 1252541243241 its reverse (1423421452521), we get a palindrome (2675962695762).

The spelling of 1252541243241 in words is "one trillion, two hundred fifty-two billion, five hundred forty-one million, two hundred forty-three thousand, two hundred forty-one".