2123112133031 has 2 divisors, whose sum is σ = 2123112133032. Its totient is φ = 2123112133030.

The previous prime is 2123112133001. The next prime is 2123112133049. The reversal of 2123112133031 is 1303312113212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123112133031 - 2²² = 2123107938727 is a prime.

It is a super-2 number, since 2×2123112133031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2123112132988 and 2123112133006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123112133001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061556066515 + 1061556066516.

It is an arithmetic number, because the mean of its divisors is an integer number (1061556066516).

Almost surely, 2^{2123112133031} is an apocalyptic number.

2123112133031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123112133031 is an equidigital number, since it uses as much as digits as its factorization.

2123112133031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2123112133031 its reverse (1303312113212), we get a palindrome (3426424246243).

The spelling of 2123112133031 in words is "two trillion, one hundred twenty-three billion, one hundred twelve million, one hundred thirty-three thousand, thirty-one".