2121023003101 has 2 divisors, whose sum is σ = 2121023003102. Its totient is φ = 2121023003100.

The previous prime is 2121023003087. The next prime is 2121023003161. The reversal of 2121023003101 is 1013003201212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1766639722500 + 354383280601 = 1329150^2 + 595301^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121023003101 - 2⁵ = 2121023003069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121023003161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060511501550 + 1060511501551.

It is an arithmetic number, because the mean of its divisors is an integer number (1060511501551).

Almost surely, 2^{2121023003101} is an apocalyptic number.

It is an amenable number.

2121023003101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121023003101 is an equidigital number, since it uses as much as digits as its factorization.

2121023003101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2121023003101 its reverse (1013003201212), we get a palindrome (3134026204313).

The spelling of 2121023003101 in words is "two trillion, one hundred twenty-one billion, twenty-three million, three thousand, one hundred one".