20320211100123 has 48 divisors (see below), whose sum is σ = 33427744178400. Its totient is φ = 11781526256640.

The previous prime is 20320211100097. The next prime is 20320211100127. The reversal of 20320211100123 is 32100111202302.

20320211100123 is a `hidden beast` number, since 2 + 0 + 320 + 211 + 10 + 0 + 123 = 666.

It is not a de Polignac number, because 20320211100123 - 2²⁵ = 20320177545691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20320211100096 and 20320211100105.

It is not an unprimeable number, because it can be changed into a prime (20320211100127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32153790 + ... + 32779667.

It is an arithmetic number, because the mean of its divisors is an integer number (696411337050).

Almost surely, 2^{20320211100123} is an apocalyptic number.

20320211100123 is a deficient number, since it is larger than the sum of its proper divisors (13107533078277).

20320211100123 is a wasteful number, since it uses less digits than its factorization.

20320211100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64933612 (or 64933609 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20320211100123 its reverse (32100111202302), we get a palindrome (52420322302425).

The spelling of 20320211100123 in words is "twenty trillion, three hundred twenty billion, two hundred eleven million, one hundred thousand, one hundred twenty-three".