305523543212 has 6 divisors (see below), whose sum is σ = 534666200628. Its totient is φ = 152761771604.

The previous prime is 305523543181. The next prime is 305523543293. The reversal of 305523543212 is 212345325503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38190442898 + ... + 38190442905.

It is an arithmetic number, because the mean of its divisors is an integer number (89111033438).

Almost surely, 2^305523543212 is an apocalyptic number.

It is an amenable number.

305523543212 is a deficient number, since it is larger than the sum of its proper divisors (229142657416).

305523543212 is a wasteful number, since it uses less digits than its factorization.

305523543212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76380885807 (or 76380885805 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 305523543212 its reverse (212345325503), we get a palindrome (517868868715).

The spelling of 305523543212 in words is "three hundred five billion, five hundred twenty-three million, five hundred forty-three thousand, two hundred twelve".