1331502131253 has 32 divisors (see below), whose sum is σ = 2117282918400. Its totient is φ = 727739122176.

The previous prime is 1331502131237. The next prime is 1331502131257. The reversal of 1331502131253 is 3521312051331.

It is not a de Polignac number, because 1331502131253 - 2⁴ = 1331502131237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331502131253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331502131257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10742608 + ... + 10865846.

It is an arithmetic number, because the mean of its divisors is an integer number (66165091200).

Almost surely, 2^{1331502131253} is an apocalyptic number.

It is an amenable number.

1331502131253 is a deficient number, since it is larger than the sum of its proper divisors (785780787147).

1331502131253 is a wasteful number, since it uses less digits than its factorization.

1331502131253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145641.

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 1331502131253 its reverse (3521312051331), we get a palindrome (4852814182584).

The spelling of 1331502131253 in words is "one trillion, three hundred thirty-one billion, five hundred two million, one hundred thirty-one thousand, two hundred fifty-three".