1253303131513 has 4 divisors (see below), whose sum is σ = 1253306183680. Its totient is φ = 1253300079348.

The previous prime is 1253303131499. The next prime is 1253303131517. The reversal of 1253303131513 is 3151313033521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1253303131513 - 2⁵ = 1253303131481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253303131517) 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, 792645 + ... + 1770562.

It is an arithmetic number, because the mean of its divisors is an integer number (313326545920).

Almost surely, 2^{1253303131513} is an apocalyptic number.

It is an amenable number.

1253303131513 is a deficient number, since it is larger than the sum of its proper divisors (3052167).

1253303131513 is an equidigital number, since it uses as much as digits as its factorization.

1253303131513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052166.

The product of its (nonzero) digits is 12150, while the sum is 31.

The spelling of 1253303131513 in words is "one trillion, two hundred fifty-three billion, three hundred three million, one hundred thirty-one thousand, five hundred thirteen".