20013251453235 has 20 divisors (see below), whose sum is σ = 35875606309488. Its totient is φ = 10673734108176.

The previous prime is 20013251453219. The next prime is 20013251453263. The reversal of 20013251453235 is 53235415231002.

20013251453235 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 325 + 1 + 4 + 5 + 323 + 5 = 666.

It is not a de Polignac number, because 20013251453235 - 2⁴ = 20013251453219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20013251453235.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 24707717439 + ... + 24707718248.

Almost surely, 2^{20013251453235} is an apocalyptic number.

20013251453235 is a deficient number, since it is larger than the sum of its proper divisors (15862354856253).

20013251453235 is an equidigital number, since it uses as much as digits as its factorization.

20013251453235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49415435704 (or 49415435695 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 20013251453235 its reverse (53235415231002), we get a palindrome (73248666684237).

The spelling of 20013251453235 in words is "twenty trillion, thirteen billion, two hundred fifty-one million, four hundred fifty-three thousand, two hundred thirty-five".