2420420231 has 4 divisors (see below), whose sum is σ = 2485837032. Its totient is φ = 2355003432.

The previous prime is 2420420227. The next prime is 2420420251. The reversal of 2420420231 is 1320240242.

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 2420420231 - 2² = 2420420227 is a prime.

It is a super-2 number, since 2×2420420231² = 11716868189268186722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420420221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32708345 + ... + 32708418.

It is an arithmetic number, because the mean of its divisors is an integer number (621459258).

Almost surely, 2^2420420231 is an apocalyptic number.

2420420231 is a deficient number, since it is larger than the sum of its proper divisors (65416801).

2420420231 is an equidigital number, since it uses as much as digits as its factorization.

2420420231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65416800.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2420420231 is about 49197.7665245080. The cubic root of 2420420231 is about 1342.6523967479.

Adding to 2420420231 its reverse (1320240242), we get a palindrome (3740660473).

The spelling of 2420420231 in words is "two billion, four hundred twenty million, four hundred twenty thousand, two hundred thirty-one".