420105545251241 has 4 divisors (see below), whose sum is σ = 420112144626000. Its totient is φ = 420098945876484.

The previous prime is 420105545251187. The next prime is 420105545251253. The reversal of 420105545251241 is 142152545501024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420105545251241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420105545211241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3299591891 + ... + 3299719208.

It is an arithmetic number, because the mean of its divisors is an integer number (105028036156500).

Almost surely, 2^{420105545251241} is an apocalyptic number.

It is an amenable number.

420105545251241 is a deficient number, since it is larger than the sum of its proper divisors (6599374759).

420105545251241 is an equidigital number, since it uses as much as digits as its factorization.

420105545251241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6599374758.

The product of its (nonzero) digits is 320000, while the sum is 41.

The spelling of 420105545251241 in words is "four hundred twenty trillion, one hundred five billion, five hundred forty-five million, two hundred fifty-one thousand, two hundred forty-one".