20110312232123 has 16 divisors (see below), whose sum is σ = 21317876870400. Its totient is φ = 18942045726240.

The previous prime is 20110312232099. The next prime is 20110312232141. The reversal of 20110312232123 is 32123221301102.

It is not a de Polignac number, because 20110312232123 - 2²² = 20110308037819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110312232183) 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, 44636711 + ... + 45084992.

It is an arithmetic number, because the mean of its divisors is an integer number (1332367304400).

Almost surely, 2^{20110312232123} is an apocalyptic number.

20110312232123 is a deficient number, since it is larger than the sum of its proper divisors (1207564638277).

20110312232123 is a wasteful number, since it uses less digits than its factorization.

20110312232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89721922.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20110312232123 its reverse (32123221301102), we get a palindrome (52233533533225).

The spelling of 20110312232123 in words is "twenty trillion, one hundred ten billion, three hundred twelve million, two hundred thirty-two thousand, one hundred twenty-three".