20303223230113 has 16 divisors (see below), whose sum is σ = 20654280375040. Its totient is φ = 19953631310976.

The previous prime is 20303223230083. The next prime is 20303223230117. The reversal of 20303223230113 is 31103232230302.

It is a cyclic number.

It is not a de Polignac number, because 20303223230113 - 2⁴¹ = 18104199974561 is a prime.

It is a super-2 number, since 2×20303223230113² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20303223230117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50827381 + ... + 51225277.

It is an arithmetic number, because the mean of its divisors is an integer number (1290892523440).

Almost surely, 2^{20303223230113} is an apocalyptic number.

It is an amenable number.

20303223230113 is a deficient number, since it is larger than the sum of its proper divisors (351057144927).

20303223230113 is a wasteful number, since it uses less digits than its factorization.

20303223230113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399736.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20303223230113 its reverse (31103232230302), we get a palindrome (51406455460415).

The spelling of 20303223230113 in words is "twenty trillion, three hundred three billion, two hundred twenty-three million, two hundred thirty thousand, one hundred thirteen".