20123110430 has 16 divisors (see below), whose sum is σ = 36498101904. Its totient is φ = 7987799040.

The previous prime is 20123110393. The next prime is 20123110433. The reversal of 20123110430 is 3401132102.

It is a junction number, because it is equal to n+sod(n) for n = 20123110399 and 20123110408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123110433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7679267 + ... + 7681886.

It is an arithmetic number, because the mean of its divisors is an integer number (2281131369).

Almost surely, 2^20123110430 is an apocalyptic number.

20123110430 is a deficient number, since it is larger than the sum of its proper divisors (16374991474).

20123110430 is a wasteful number, since it uses less digits than its factorization.

20123110430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15361291.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20123110430 its reverse (3401132102), we get a palindrome (23524242532).

The spelling of 20123110430 in words is "twenty billion, one hundred twenty-three million, one hundred ten thousand, four hundred thirty".