42405241051 has 2 divisors, whose sum is σ = 42405241052. Its totient is φ = 42405241050.

The previous prime is 42405240989. The next prime is 42405241111. The reversal of 42405241051 is 15014250424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42405241051 is a prime.

It is not a weakly prime, because it can be changed into another prime (42405241451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21202620525 + 21202620526.

It is an arithmetic number, because the mean of its divisors is an integer number (21202620526).

Almost surely, 2^42405241051 is an apocalyptic number.

42405241051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42405241051 is an equidigital number, since it uses as much as digits as its factorization.

42405241051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 42405241051 its reverse (15014250424), we get a palindrome (57419491475).

The spelling of 42405241051 in words is "forty-two billion, four hundred five million, two hundred forty-one thousand, fifty-one".