1253236365113 has 4 divisors (see below), whose sum is σ = 1254417550308. Its totient is φ = 1252055179920.

The previous prime is 1253236365067. The next prime is 1253236365137. The reversal of 1253236365113 is 3115636323521.

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 406262187769 + 846974177344 = 637387^2 + 920312^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253236365113 - 2²² = 1253232170809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253236365413) 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, 590591006 + ... + 590593127.

It is an arithmetic number, because the mean of its divisors is an integer number (313604387577).

Almost surely, 2^{1253236365113} is an apocalyptic number.

It is an amenable number.

1253236365113 is a deficient number, since it is larger than the sum of its proper divisors (1181185195).

1253236365113 is a wasteful number, since it uses less digits than its factorization.

1253236365113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181185194.

The product of its digits is 291600, while the sum is 41.

The spelling of 1253236365113 in words is "one trillion, two hundred fifty-three billion, two hundred thirty-six million, three hundred sixty-five thousand, one hundred thirteen".