20344130223 has 16 divisors (see below), whose sum is σ = 28340918016. Its totient is φ = 12956549760.

The previous prime is 20344130221. The next prime is 20344130227. The reversal of 20344130223 is 32203144302.

It is not a de Polignac number, because 20344130223 - 2¹ = 20344130221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20344130193 and 20344130202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344130221) 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, 133018 + ... + 241623.

It is an arithmetic number, because the mean of its divisors is an integer number (1771307376).

Almost surely, 2^20344130223 is an apocalyptic number.

20344130223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20344130223 is a deficient number, since it is larger than the sum of its proper divisors (7996787793).

20344130223 is a wasteful number, since it uses less digits than its factorization.

20344130223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375454.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20344130223 its reverse (32203144302), we get a palindrome (52547274525).

The spelling of 20344130223 in words is "twenty billion, three hundred forty-four million, one hundred thirty thousand, two hundred twenty-three".