20013122332123 has 16 divisors (see below), whose sum is σ = 20107854885376. Its totient is φ = 19918615353120.

The previous prime is 20013122332109. The next prime is 20013122332153. The reversal of 20013122332123 is 32123322131002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20013122332123 is a prime.

It is a super-4 number, since 4×20013122332123⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013122332153) 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, 802341790 + ... + 802366732.

It is an arithmetic number, because the mean of its divisors is an integer number (1256740930336).

Almost surely, 2^{20013122332123} is an apocalyptic number.

20013122332123 is a deficient number, since it is larger than the sum of its proper divisors (94732553253).

20013122332123 is a wasteful number, since it uses less digits than its factorization.

20013122332123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29314.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20013122332123 its reverse (32123322131002), we get a palindrome (52136444463125).

The spelling of 20013122332123 in words is "twenty trillion, thirteen billion, one hundred twenty-two million, three hundred thirty-two thousand, one hundred twenty-three".