42403442051 has 2 divisors, whose sum is σ = 42403442052. Its totient is φ = 42403442050.

The previous prime is 42403442017. The next prime is 42403442083. The reversal of 42403442051 is 15024430424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42403442051 - 2¹⁰ = 42403441027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42403442351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201721025 + 21201721026.

It is an arithmetic number, because the mean of its divisors is an integer number (21201721026).

Almost surely, 2^42403442051 is an apocalyptic number.

42403442051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42403442051 is an equidigital number, since it uses as much as digits as its factorization.

42403442051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 42403442051 its reverse (15024430424), we get a palindrome (57427872475).

The spelling of 42403442051 in words is "forty-two billion, four hundred three million, four hundred forty-two thousand, fifty-one".