2100442427 has 2 divisors, whose sum is σ = 2100442428. Its totient is φ = 2100442426.

The previous prime is 2100442403. The next prime is 2100442493. The reversal of 2100442427 is 7242440012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100442427 - 2²⁶ = 2033333563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100442396 and 2100442405.

It is not a weakly prime, because it can be changed into another prime (2100442627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050221213 + 1050221214.

It is an arithmetic number, because the mean of its divisors is an integer number (1050221214).

Almost surely, 2^2100442427 is an apocalyptic number.

2100442427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100442427 is an equidigital number, since it uses as much as digits as its factorization.

2100442427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 2100442427 is about 45830.5839696594. The cubic root of 2100442427 is about 1280.6690892756.

Adding to 2100442427 its reverse (7242440012), we get a palindrome (9342882439).

The spelling of 2100442427 in words is "two billion, one hundred million, four hundred forty-two thousand, four hundred twenty-seven".