42061301263 has 2 divisors, whose sum is σ = 42061301264. Its totient is φ = 42061301262.

The previous prime is 42061301251. The next prime is 42061301369. The reversal of 42061301263 is 36210316024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42061301263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42061301663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21030650631 + 21030650632.

It is an arithmetic number, because the mean of its divisors is an integer number (21030650632).

Almost surely, 2^42061301263 is an apocalyptic number.

42061301263 is a deficient number, since it is larger than the sum of its proper divisors (1).

42061301263 is an equidigital number, since it uses as much as digits as its factorization.

42061301263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 42061301263 its reverse (36210316024), we get a palindrome (78271617287).

The spelling of 42061301263 in words is "forty-two billion, sixty-one million, three hundred one thousand, two hundred sixty-three".