2123020129933 has 2 divisors, whose sum is σ = 2123020129934. Its totient is φ = 2123020129932.

The previous prime is 2123020129921. The next prime is 2123020130027. The reversal of 2123020129933 is 3399210203212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2003306205924 + 119713924009 = 1415382^2 + 345997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123020129933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123020129892 and 2123020129901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123020129903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061510064966 + 1061510064967.

It is an arithmetic number, because the mean of its divisors is an integer number (1061510064967).

Almost surely, 2^{2123020129933} is an apocalyptic number.

It is an amenable number.

2123020129933 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123020129933 is an equidigital number, since it uses as much as digits as its factorization.

2123020129933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 2123020129933 in words is "two trillion, one hundred twenty-three billion, twenty million, one hundred twenty-nine thousand, nine hundred thirty-three".