1252631024101 has 4 divisors (see below), whose sum is σ = 1252633967500. Its totient is φ = 1252628080704.

The previous prime is 1252631024093. The next prime is 1252631024111. The reversal of 1252631024101 is 1014201362521.

It is a Cunningham number, because it is equal to 1119210²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28618488900 + 1224012535201 = 169170^2 + 1106351^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252631024101 - 2³ = 1252631024093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252631024101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252631024111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697626 + ... + 1729723.

It is an arithmetic number, because the mean of its divisors is an integer number (313158491875).

Almost surely, 2^{1252631024101} is an apocalyptic number.

It is an amenable number.

1252631024101 is a deficient number, since it is larger than the sum of its proper divisors (2943399).

1252631024101 is an equidigital number, since it uses as much as digits as its factorization.

1252631024101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943398.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 1252631024101 its reverse (1014201362521), we get a palindrome (2266832386622).

The spelling of 1252631024101 in words is "one trillion, two hundred fifty-two billion, six hundred thirty-one million, twenty-four thousand, one hundred one".