2120454023 has 2 divisors, whose sum is σ = 2120454024. Its totient is φ = 2120454022.

The previous prime is 2120453983. The next prime is 2120454029. The reversal of 2120454023 is 3204540212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120454023 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2120454023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120454029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060227011 + 1060227012.

It is an arithmetic number, because the mean of its divisors is an integer number (1060227012).

Almost surely, 2^2120454023 is an apocalyptic number.

2120454023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120454023 is an equidigital number, since it uses as much as digits as its factorization.

2120454023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2120454023 is about 46048.3878436585. The cubic root of 2120454023 is about 1284.7233575061.

Adding to 2120454023 its reverse (3204540212), we get a palindrome (5324994235).

The spelling of 2120454023 in words is "two billion, one hundred twenty million, four hundred fifty-four thousand, twenty-three".