2421587123 has 2 divisors, whose sum is σ = 2421587124. Its totient is φ = 2421587122.

The previous prime is 2421587111. The next prime is 2421587153. The reversal of 2421587123 is 3217851242.

2421587123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2421587123 - 2¹⁰ = 2421586099 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2421587153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210793561 + 1210793562.

It is an arithmetic number, because the mean of its divisors is an integer number (1210793562).

Almost surely, 2^2421587123 is an apocalyptic number.

2421587123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421587123 is an equidigital number, since it uses as much as digits as its factorization.

2421587123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 35.

The square root of 2421587123 is about 49209.6242924085. The cubic root of 2421587123 is about 1342.8681276931.

The spelling of 2421587123 in words is "two billion, four hundred twenty-one million, five hundred eighty-seven thousand, one hundred twenty-three".