305423131 has 8 divisors (see below), whose sum is σ = 329055104. Its totient is φ = 281810880.

The previous prime is 305423101. The next prime is 305423149. The reversal of 305423131 is 131324503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 305423131 - 2²⁵ = 271868699 is a prime.

It is a super-2 number, since 2×305423131² = 186566577899686322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305423101) 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 7 ways as a sum of consecutive naturals, for example, 49846 + ... + 55636.

It is an arithmetic number, because the mean of its divisors is an integer number (41131888).

Almost surely, 2^305423131 is an apocalyptic number.

305423131 is a deficient number, since it is larger than the sum of its proper divisors (23631973).

305423131 is a wasteful number, since it uses less digits than its factorization.

305423131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9861.

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

The square root of 305423131 is about 17476.3592032208. The cubic root of 305423131 is about 673.4426876656.

Adding to 305423131 its reverse (131324503), we get a palindrome (436747634).

The spelling of 305423131 in words is "three hundred five million, four hundred twenty-three thousand, one hundred thirty-one".