20112023100121 has 4 divisors (see below), whose sum is σ = 20112033027600. Its totient is φ = 20112013172644.

The previous prime is 20112023100119. The next prime is 20112023100139. The reversal of 20112023100121 is 12100132021102.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20112023100121 - 2¹ = 20112023100119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112023100095 and 20112023100104.

It is not an unprimeable number, because it can be changed into a prime (20112023100101) 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, 709531 + ... + 6381808.

It is an arithmetic number, because the mean of its divisors is an integer number (5028008256900).

Almost surely, 2^{20112023100121} is an apocalyptic number.

It is an amenable number.

20112023100121 is a deficient number, since it is larger than the sum of its proper divisors (9927479).

20112023100121 is an equidigital number, since it uses as much as digits as its factorization.

20112023100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9927478.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20112023100121 its reverse (12100132021102), we get a palindrome (32212155121223).

The spelling of 20112023100121 in words is "twenty trillion, one hundred twelve billion, twenty-three million, one hundred thousand, one hundred twenty-one".