20323011103 has 4 divisors (see below), whose sum is σ = 20609250768. Its totient is φ = 20036771440.

The previous prime is 20323011011. The next prime is 20323011109. The reversal of 20323011103 is 30111032302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20323011103 - 2¹³ = 20323002911 is a prime.

It is a super-2 number, since 2×20323011103² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323011109) 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, 143119726 + ... + 143119867.

It is an arithmetic number, because the mean of its divisors is an integer number (5152312692).

Almost surely, 2^20323011103 is an apocalyptic number.

20323011103 is a deficient number, since it is larger than the sum of its proper divisors (286239665).

20323011103 is an equidigital number, since it uses as much as digits as its factorization.

20323011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286239664.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20323011103 its reverse (30111032302), we get a palindrome (50434043405).

The spelling of 20323011103 in words is "twenty billion, three hundred twenty-three million, eleven thousand, one hundred three".