1236434620113 has 64 divisors (see below), whose sum is σ = 2336857036800. Its totient is φ = 627366358080.

The previous prime is 1236434620081. The next prime is 1236434620147. The reversal of 1236434620113 is 3110264346321.

1236434620113 is a `hidden beast` number, since 1 + 2 + 3 + 6 + 434 + 6 + 201 + 13 = 666.

It is not a de Polignac number, because 1236434620113 - 2⁵ = 1236434620081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1236434620313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6826018 + ... + 7004811.

It is an arithmetic number, because the mean of its divisors is an integer number (36513391200).

Almost surely, 2^{1236434620113} is an apocalyptic number.

It is an amenable number.

1236434620113 is a deficient number, since it is larger than the sum of its proper divisors (1100422416687).

1236434620113 is a wasteful number, since it uses less digits than its factorization.

1236434620113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13830899 (or 13830893 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 1236434620113 its reverse (3110264346321), we get a palindrome (4346698966434).

The spelling of 1236434620113 in words is "one trillion, two hundred thirty-six billion, four hundred thirty-four million, six hundred twenty thousand, one hundred thirteen".