2112312029 has 2 divisors, whose sum is σ = 2112312030. Its totient is φ = 2112312028.

The previous prime is 2112312017. The next prime is 2112312031. The reversal of 2112312029 is 9202132112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1453363129 + 658948900 = 38123^2 + 25670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112312029 is a prime.

It is a Sophie Germain prime.

Together with 2112312031, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2112311995 and 2112312013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112312089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056156014 + 1056156015.

It is an arithmetic number, because the mean of its divisors is an integer number (1056156015).

Almost surely, 2^2112312029 is an apocalyptic number.

It is an amenable number.

2112312029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112312029 is an equidigital number, since it uses as much as digits as its factorization.

2112312029 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 23.

The square root of 2112312029 is about 45959.8958767315. The cubic root of 2112312029 is about 1283.0769134658.

The spelling of 2112312029 in words is "two billion, one hundred twelve million, three hundred twelve thousand, twenty-nine".