42120051359 has 2 divisors, whose sum is σ = 42120051360. Its totient is φ = 42120051358.

The previous prime is 42120051341. The next prime is 42120051373. The reversal of 42120051359 is 95315002124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42120051359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42120851359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21060025679 + 21060025680.

It is an arithmetic number, because the mean of its divisors is an integer number (21060025680).

Almost surely, 2^42120051359 is an apocalyptic number.

42120051359 is a deficient number, since it is larger than the sum of its proper divisors (1).

42120051359 is an equidigital number, since it uses as much as digits as its factorization.

42120051359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 42120051359 in words is "forty-two billion, one hundred twenty million, fifty-one thousand, three hundred fifty-nine".