1236253606013 has 16 divisors (see below), whose sum is σ = 1265324521536. Its totient is φ = 1207622390400.

The previous prime is 1236253605989. The next prime is 1236253606037. The reversal of 1236253606013 is 3106063526321.

It is an interprime number because it is at equal distance from previous prime (1236253605989) and next prime (1236253606037).

It is a cyclic number.

It is not a de Polignac number, because 1236253606013 - 2⁸ = 1236253605757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1236253606043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1981370 + ... + 2529492.

It is an arithmetic number, because the mean of its divisors is an integer number (79082782596).

Almost surely, 2^{1236253606013} is an apocalyptic number.

It is an amenable number.

1236253606013 is a deficient number, since it is larger than the sum of its proper divisors (29070915523).

1236253606013 is a wasteful number, since it uses less digits than its factorization.

1236253606013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548524.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 1236253606013 in words is "one trillion, two hundred thirty-six billion, two hundred fifty-three million, six hundred six thousand, thirteen".