2120912473 has 2 divisors, whose sum is σ = 2120912474. Its totient is φ = 2120912472.

The previous prime is 2120912429. The next prime is 2120912489. The reversal of 2120912473 is 3742190212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1337584329 + 783328144 = 36573^2 + 27988^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120912473 - 2²⁵ = 2087358041 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120912173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060456236 + 1060456237.

It is an arithmetic number, because the mean of its divisors is an integer number (1060456237).

Almost surely, 2^2120912473 is an apocalyptic number.

It is an amenable number.

2120912473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120912473 is an equidigital number, since it uses as much as digits as its factorization.

2120912473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2120912473 is about 46053.3654904829. The cubic root of 2120912473 is about 1284.8159381477.

The spelling of 2120912473 in words is "two billion, one hundred twenty million, nine hundred twelve thousand, four hundred seventy-three".