20103122121233 has 4 divisors (see below), whose sum is σ = 20103131097828. Its totient is φ = 20103113144640.

The previous prime is 20103122121221. The next prime is 20103122121287. The reversal of 20103122121233 is 33212122130102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13058307322384 + 7044814798849 = 3613628^2 + 2654207^2 .

It is a cyclic number.

It is not a de Polignac number, because 20103122121233 - 2¹⁰ = 20103122120209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20103122121199 and 20103122121208.

It is not an unprimeable number, because it can be changed into a prime (20103122127233) 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, 1937885 + ... + 6630357.

It is an arithmetic number, because the mean of its divisors is an integer number (5025782774457).

Almost surely, 2^{20103122121233} is an apocalyptic number.

It is an amenable number.

20103122121233 is a deficient number, since it is larger than the sum of its proper divisors (8976595).

20103122121233 is an equidigital number, since it uses as much as digits as its factorization.

20103122121233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8976594.

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

Adding to 20103122121233 its reverse (33212122130102), we get a palindrome (53315244251335).

The spelling of 20103122121233 in words is "twenty trillion, one hundred three billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred thirty-three".