2120344441429 has 2 divisors, whose sum is σ = 2120344441430. Its totient is φ = 2120344441428.

The previous prime is 2120344441363. The next prime is 2120344441447. The reversal of 2120344441429 is 9241444430212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2051477560804 + 68866880625 = 1432298^2 + 262425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120344441429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120344441391 and 2120344441400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120344441469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060172220714 + 1060172220715.

It is an arithmetic number, because the mean of its divisors is an integer number (1060172220715).

Almost surely, 2^{2120344441429} is an apocalyptic number.

It is an amenable number.

2120344441429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120344441429 is an equidigital number, since it uses as much as digits as its factorization.

2120344441429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 2120344441429 in words is "two trillion, one hundred twenty billion, three hundred forty-four million, four hundred forty-one thousand, four hundred twenty-nine".