2123201033231 has 2 divisors, whose sum is σ = 2123201033232. Its totient is φ = 2123201033230.

The previous prime is 2123201033207. The next prime is 2123201033237. The reversal of 2123201033231 is 1323301023212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123201033231 - 2²⁶ = 2123133924367 is a prime.

It is a super-2 number, since 2×2123201033231² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123201033197 and 2123201033206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123201033237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061600516615 + 1061600516616.

It is an arithmetic number, because the mean of its divisors is an integer number (1061600516616).

Almost surely, 2^{2123201033231} is an apocalyptic number.

2123201033231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123201033231 is an equidigital number, since it uses as much as digits as its factorization.

2123201033231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2123201033231 its reverse (1323301023212), we get a palindrome (3446502056443).

The spelling of 2123201033231 in words is "two trillion, one hundred twenty-three billion, two hundred one million, thirty-three thousand, two hundred thirty-one".