2123104421231 has 2 divisors, whose sum is σ = 2123104421232. Its totient is φ = 2123104421230.

The previous prime is 2123104421219. The next prime is 2123104421237. The reversal of 2123104421231 is 1321244013212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123104421231 - 2⁶ = 2123104421167 is a prime.

It is a super-2 number, since 2×2123104421231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2123104421231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123104421237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061552210615 + 1061552210616.

It is an arithmetic number, because the mean of its divisors is an integer number (1061552210616).

Almost surely, 2^{2123104421231} is an apocalyptic number.

2123104421231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123104421231 is an equidigital number, since it uses as much as digits as its factorization.

2123104421231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 2123104421231 its reverse (1321244013212), we get a palindrome (3444348434443).

The spelling of 2123104421231 in words is "two trillion, one hundred twenty-three billion, one hundred four million, four hundred twenty-one thousand, two hundred thirty-one".