2120121293 has 2 divisors, whose sum is σ = 2120121294. Its totient is φ = 2120121292.

The previous prime is 2120121259. The next prime is 2120121313. The reversal of 2120121293 is 3921210212.

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., 1365080809 + 755040484 = 36947^2 + 27478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120121293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120121233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060060646 + 1060060647.

It is an arithmetic number, because the mean of its divisors is an integer number (1060060647).

Almost surely, 2^2120121293 is an apocalyptic number.

It is an amenable number.

2120121293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120121293 is an equidigital number, since it uses as much as digits as its factorization.

2120121293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2120121293 is about 46044.7748718571. The cubic root of 2120121293 is about 1284.6561567465.

The spelling of 2120121293 in words is "two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred ninety-three".