420326202161263 has 4 divisors (see below), whose sum is σ = 438601254429168. Its totient is φ = 402051149893360.

The previous prime is 420326202161221. The next prime is 420326202161293. The reversal of 420326202161263 is 362161202623024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420326202161263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420326202161293) 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, 9137526133918 + ... + 9137526133963.

It is an arithmetic number, because the mean of its divisors is an integer number (109650313607292).

Almost surely, 2^{420326202161263} is an apocalyptic number.

420326202161263 is a deficient number, since it is larger than the sum of its proper divisors (18275052267905).

420326202161263 is a wasteful number, since it uses less digits than its factorization.

420326202161263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18275052267904.

The product of its (nonzero) digits is 248832, while the sum is 40.

Adding to 420326202161263 its reverse (362161202623024), we get a palindrome (782487404784287).

The spelling of 420326202161263 in words is "four hundred twenty trillion, three hundred twenty-six billion, two hundred two million, one hundred sixty-one thousand, two hundred sixty-three".