2123203112101 has 24 divisors (see below), whose sum is σ = 2301989822720. Its totient is φ = 1956059582400.

The previous prime is 2123203112099. The next prime is 2123203112113. The reversal of 2123203112101 is 1012113023212.

It is not a de Polignac number, because 2123203112101 - 2¹ = 2123203112099 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 (2123203112131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3153385 + ... + 3766993.

Almost surely, 2^{2123203112101} is an apocalyptic number.

It is an amenable number.

2123203112101 is a deficient number, since it is larger than the sum of its proper divisors (178786710619).

2123203112101 is a wasteful number, since it uses less digits than its factorization.

2123203112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613897 (or 613874 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2123203112101 its reverse (1012113023212), we get a palindrome (3135316135313).

The spelling of 2123203112101 in words is "two trillion, one hundred twenty-three billion, two hundred three million, one hundred twelve thousand, one hundred one".