4122123583491 has 24 divisors (see below), whose sum is σ = 6177585756160. Its totient is φ = 2746799689032.

The previous prime is 4122123583489. The next prime is 4122123583549. The reversal of 4122123583491 is 1943853212214.

4122123583491 is a `hidden beast` number, since 4 + 1 + 2 + 2 + 1 + 23 + 583 + 49 + 1 = 666.

4122123583491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4122123583491 - 2¹ = 4122123583489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4122123583691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3437131 + ... + 4478628.

Almost surely, 2^{4122123583491} is an apocalyptic number.

4122123583491 is a deficient number, since it is larger than the sum of its proper divisors (2055462172669).

4122123583491 is an equidigital number, since it uses as much as digits as its factorization.

4122123583491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7917917 (or 7917905 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 4122123583491 in words is "four trillion, one hundred twenty-two billion, one hundred twenty-three million, five hundred eighty-three thousand, four hundred ninety-one".