2100323023121 has 2 divisors, whose sum is σ = 2100323023122. Its totient is φ = 2100323023120.

The previous prime is 2100323023079. The next prime is 2100323023177. The reversal of 2100323023121 is 1213203230012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1182788928721 + 917534094400 = 1087561^2 + 957880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100323023121 is a prime.

It is a super-2 number, since 2×2100323023121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100323023093 and 2100323023102.

It is not a weakly prime, because it can be changed into another prime (2100323323121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050161511560 + 1050161511561.

It is an arithmetic number, because the mean of its divisors is an integer number (1050161511561).

Almost surely, 2^{2100323023121} is an apocalyptic number.

It is an amenable number.

2100323023121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100323023121 is an equidigital number, since it uses as much as digits as its factorization.

2100323023121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2100323023121 its reverse (1213203230012), we get a palindrome (3313526253133).

The spelling of 2100323023121 in words is "two trillion, one hundred billion, three hundred twenty-three million, twenty-three thousand, one hundred twenty-one".