42420322231 has 4 divisors (see below), whose sum is σ = 48480368272. Its totient is φ = 36360276192.

The previous prime is 42420322229. The next prime is 42420322237. The reversal of 42420322231 is 13222302424.

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 42420322231 - 2¹ = 42420322229 is a prime.

It is a super-2 number, since 2×42420322231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42420322196 and 42420322205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42420322237) 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, 3030023010 + ... + 3030023023.

It is an arithmetic number, because the mean of its divisors is an integer number (12120092068).

Almost surely, 2^42420322231 is an apocalyptic number.

42420322231 is a deficient number, since it is larger than the sum of its proper divisors (6060046041).

42420322231 is an equidigital number, since it uses as much as digits as its factorization.

42420322231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060046040.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 42420322231 its reverse (13222302424), we get a palindrome (55642624655).

The spelling of 42420322231 in words is "forty-two billion, four hundred twenty million, three hundred twenty-two thousand, two hundred thirty-one".