20013657010235 has 16 divisors (see below), whose sum is σ = 28640661958656. Its totient is φ = 13126970063328.

The previous prime is 20013657010231. The next prime is 20013657010337. The reversal of 20013657010235 is 53201075631002.

It is a cyclic number.

It is not a de Polignac number, because 20013657010235 - 2² = 20013657010231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013657010195 and 20013657010204.

It is not an unprimeable number, because it can be changed into a prime (20013657010231) 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 15 ways as a sum of consecutive naturals, for example, 12430842059 + ... + 12430843668.

It is an arithmetic number, because the mean of its divisors is an integer number (1790041372416).

Almost surely, 2^{20013657010235} is an apocalyptic number.

20013657010235 is a deficient number, since it is larger than the sum of its proper divisors (8627004948421).

20013657010235 is a wasteful number, since it uses less digits than its factorization.

20013657010235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24861685762.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 20013657010235 in words is "twenty trillion, thirteen billion, six hundred fifty-seven million, ten thousand, two hundred thirty-five".