20321122310123 has 8 divisors (see below), whose sum is σ = 20386673218080. Its totient is φ = 20255572746880.

The previous prime is 20321122310119. The next prime is 20321122310143. The reversal of 20321122310123 is 32101322112302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20321122310123 - 2² = 20321122310119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321122310143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36395123 + ... + 36949251.

It is an arithmetic number, because the mean of its divisors is an integer number (2548334152260).

Almost surely, 2^{20321122310123} is an apocalyptic number.

20321122310123 is a deficient number, since it is larger than the sum of its proper divisors (65550907957).

20321122310123 is a wasteful number, since it uses less digits than its factorization.

20321122310123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672357.

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

Adding to 20321122310123 its reverse (32101322112302), we get a palindrome (52422444422425).

The spelling of 20321122310123 in words is "twenty trillion, three hundred twenty-one billion, one hundred twenty-two million, three hundred ten thousand, one hundred twenty-three".