42420501113 has 2 divisors, whose sum is σ = 42420501114. Its totient is φ = 42420501112.

The previous prime is 42420501059. The next prime is 42420501247. The reversal of 42420501113 is 31110502424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41423646784 + 996854329 = 203528^2 + 31573^2 .

It is a cyclic number.

It is not a de Polignac number, because 42420501113 - 2⁶ = 42420501049 is a prime.

It is not a weakly prime, because it can be changed into another prime (42420501413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21210250556 + 21210250557.

It is an arithmetic number, because the mean of its divisors is an integer number (21210250557).

Almost surely, 2^42420501113 is an apocalyptic number.

It is an amenable number.

42420501113 is a deficient number, since it is larger than the sum of its proper divisors (1).

42420501113 is an equidigital number, since it uses as much as digits as its factorization.

42420501113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 42420501113 in words is "forty-two billion, four hundred twenty million, five hundred one thousand, one hundred thirteen".