20303202220113 has 32 divisors (see below), whose sum is σ = 27976591627776. Its totient is φ = 13089067625088.

The previous prime is 20303202220097. The next prime is 20303202220117. The reversal of 20303202220113 is 31102220230302.

It is a happy number.

It is not a de Polignac number, because 20303202220113 - 2⁴ = 20303202220097 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20303202220113.

It is not an unprimeable number, because it can be changed into a prime (20303202220117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22005445 + ... + 22909517.

It is an arithmetic number, because the mean of its divisors is an integer number (874268488368).

Almost surely, 2^{20303202220113} is an apocalyptic number.

It is an amenable number.

20303202220113 is a deficient number, since it is larger than the sum of its proper divisors (7673389407663).

20303202220113 is a wasteful number, since it uses less digits than its factorization.

20303202220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905853.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20303202220113 its reverse (31102220230302), we get a palindrome (51405422450415).

The spelling of 20303202220113 in words is "twenty trillion, three hundred three billion, two hundred two million, two hundred twenty thousand, one hundred thirteen".