423305131 has 4 divisors (see below), whose sum is σ = 423434952. Its totient is φ = 423175312.

The previous prime is 423305101. The next prime is 423305143. The reversal of 423305131 is 131503324.

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-423305131 is a prime.

It is a super-2 number, since 2×423305131² = 358374467861854322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423305101) 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, 59890 + ... + 66583.

It is an arithmetic number, because the mean of its divisors is an integer number (105858738).

Almost surely, 2^423305131 is an apocalyptic number.

423305131 is a deficient number, since it is larger than the sum of its proper divisors (129821).

423305131 is a wasteful number, since it uses less digits than its factorization.

423305131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129820.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 423305131 is about 20574.3804523976. The cubic root of 423305131 is about 750.8465291953.

Adding to 423305131 its reverse (131503324), we get a palindrome (554808455).

The spelling of 423305131 in words is "four hundred twenty-three million, three hundred five thousand, one hundred thirty-one".