420320241331 has 4 divisors (see below), whose sum is σ = 420352027200. Its totient is φ = 420288455464.

The previous prime is 420320241317. The next prime is 420320241337. The reversal of 420320241331 is 133142023024.

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

It is a cyclic number.

It is not a de Polignac number, because 420320241331 - 2⁹ = 420320240819 is a prime.

It is a super-2 number, since 2×420320241331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420320241296 and 420320241305.

It is not an unprimeable number, because it can be changed into a prime (420320241337) 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, 15873091 + ... + 15899548.

It is an arithmetic number, because the mean of its divisors is an integer number (105088006800).

Almost surely, 2^420320241331 is an apocalyptic number.

420320241331 is a deficient number, since it is larger than the sum of its proper divisors (31785869).

420320241331 is a wasteful number, since it uses less digits than its factorization.

420320241331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31785868.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 420320241331 its reverse (133142023024), we get a palindrome (553462264355).

The spelling of 420320241331 in words is "four hundred twenty billion, three hundred twenty million, two hundred forty-one thousand, three hundred thirty-one".