42100061262305 has 4 divisors (see below), whose sum is σ = 50520073514772. Its totient is φ = 33680049009840.

The previous prime is 42100061262299. The next prime is 42100061262341. The reversal of 42100061262305 is 50326216000124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20850100248481 + 21249961013824 = 4566191^2 + 4609768^2 .

It is not a de Polignac number, because 42100061262305 - 2⁴ = 42100061262289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4210006126226 + ... + 4210006126235.

It is an arithmetic number, because the mean of its divisors is an integer number (12630018378693).

Almost surely, 2^{42100061262305} is an apocalyptic number.

It is an amenable number.

42100061262305 is a deficient number, since it is larger than the sum of its proper divisors (8420012252467).

42100061262305 is an equidigital number, since it uses as much as digits as its factorization.

42100061262305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8420012252466.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 42100061262305 its reverse (50326216000124), we get a palindrome (92426277262429).

The spelling of 42100061262305 in words is "forty-two trillion, one hundred billion, sixty-one million, two hundred sixty-two thousand, three hundred five".