2123030221231 has 2 divisors, whose sum is σ = 2123030221232. Its totient is φ = 2123030221230.

The previous prime is 2123030221199. The next prime is 2123030221241. The reversal of 2123030221231 is 1321220303212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123030221231 - 2⁵ = 2123030221199 is a prime.

It is a super-2 number, since 2×2123030221231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123030221241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061515110615 + 1061515110616.

It is an arithmetic number, because the mean of its divisors is an integer number (1061515110616).

Almost surely, 2^{2123030221231} is an apocalyptic number.

2123030221231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123030221231 is an equidigital number, since it uses as much as digits as its factorization.

2123030221231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2123030221231 its reverse (1321220303212), we get a palindrome (3444250524443).

The spelling of 2123030221231 in words is "two trillion, one hundred twenty-three billion, thirty million, two hundred twenty-one thousand, two hundred thirty-one".