20123133112101 has 4 divisors (see below), whose sum is σ = 26830844149472. Its totient is φ = 13415422074732.

The previous prime is 20123133112097. The next prime is 20123133112123. The reversal of 20123133112101 is 10121133132102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20123133112101 - 2² = 20123133112097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123133102101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3353855518681 + ... + 3353855518686.

It is an arithmetic number, because the mean of its divisors is an integer number (6707711037368).

Almost surely, 2^{20123133112101} is an apocalyptic number.

It is an amenable number.

20123133112101 is a deficient number, since it is larger than the sum of its proper divisors (6707711037371).

20123133112101 is an equidigital number, since it uses as much as digits as its factorization.

20123133112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707711037370.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 20123133112101 its reverse (10121133132102), we get a palindrome (30244266244203).

The spelling of 20123133112101 in words is "twenty trillion, one hundred twenty-three billion, one hundred thirty-three million, one hundred twelve thousand, one hundred one".