1236506545113 has 8 divisors (see below), whose sum is σ = 1884200449728. Its totient is φ = 706575168624.

The previous prime is 1236506545073. The next prime is 1236506545139. The reversal of 1236506545113 is 3115456056321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1236506545113 - 2⁸ = 1236506544857 is a prime.

It is a super-2 number, since 2×1236506545113² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1236506546113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29440632006 + ... + 29440632047.

It is an arithmetic number, because the mean of its divisors is an integer number (235525056216).

Almost surely, 2^{1236506545113} is an apocalyptic number.

It is an amenable number.

1236506545113 is a deficient number, since it is larger than the sum of its proper divisors (647693904615).

1236506545113 is an equidigital number, since it uses as much as digits as its factorization.

1236506545113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58881264063.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 1236506545113 in words is "one trillion, two hundred thirty-six billion, five hundred six million, five hundred forty-five thousand, one hundred thirteen".