423237013 has 4 divisors (see below), whose sum is σ = 423290988. Its totient is φ = 423183040.

The previous prime is 423236993. The next prime is 423237019. The reversal of 423237013 is 310732324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 128187684 + 295049329 = 11322^2 + 17177^2 .

It is a cyclic number.

It is not a de Polignac number, because 423237013 - 2¹⁷ = 423105941 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 (423237019) 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, 12706 + ... + 31747.

It is an arithmetic number, because the mean of its divisors is an integer number (105822747).

Almost surely, 2^423237013 is an apocalyptic number.

It is an amenable number.

423237013 is a deficient number, since it is larger than the sum of its proper divisors (53975).

423237013 is an equidigital number, since it uses as much as digits as its factorization.

423237013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53974.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 423237013 is about 20572.7249775036. The cubic root of 423237013 is about 750.8062517817.

Adding to 423237013 its reverse (310732324), we get a palindrome (733969337).

The spelling of 423237013 in words is "four hundred twenty-three million, two hundred thirty-seven thousand, thirteen".