20310523011113 has 4 divisors (see below), whose sum is σ = 20435127446928. Its totient is φ = 20185918575300.

The previous prime is 20310523011089. The next prime is 20310523011143. The reversal of 20310523011113 is 31111032501302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20310523011113 - 2²⁶ = 20310455902249 is a prime.

It is a super-3 number, since 3×20310523011113³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310523011143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62302217663 + ... + 62302217988.

It is an arithmetic number, because the mean of its divisors is an integer number (5108781861732).

Almost surely, 2^{20310523011113} is an apocalyptic number.

It is an amenable number.

20310523011113 is a deficient number, since it is larger than the sum of its proper divisors (124604435815).

20310523011113 is a wasteful number, since it uses less digits than its factorization.

20310523011113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124604435814.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 20310523011113 its reverse (31111032501302), we get a palindrome (51421555512415).

The spelling of 20310523011113 in words is "twenty trillion, three hundred ten billion, five hundred twenty-three million, eleven thousand, one hundred thirteen".