305131111234 has 16 divisors (see below), whose sum is σ = 466588553472. Its totient is φ = 149604755248.

The previous prime is 305131111231. The next prime is 305131111247. The reversal of 305131111234 is 432111131503.

It is a junction number, because it is equal to n+sod(n) for n = 305131111199 and 305131111208.

It is not an unprimeable number, because it can be changed into a prime (305131111231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596284 + ... + 982759.

It is an arithmetic number, because the mean of its divisors is an integer number (29161784592).

Almost surely, 2^305131111234 is an apocalyptic number.

305131111234 is a deficient number, since it is larger than the sum of its proper divisors (161457442238).

305131111234 is a wasteful number, since it uses less digits than its factorization.

305131111234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580921.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 305131111234 its reverse (432111131503), we get a palindrome (737242242737).

The spelling of 305131111234 in words is "three hundred five billion, one hundred thirty-one million, one hundred eleven thousand, two hundred thirty-four".