305511124012 has 24 divisors (see below), whose sum is σ = 535168932480. Its totient is φ = 152605783680.

The previous prime is 305511123997. The next prime is 305511124057. The reversal of 305511124012 is 210421115503.

It is a super-2 number, since 2×305511124012² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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, 27475878 + ... + 27486994.

It is an arithmetic number, because the mean of its divisors is an integer number (22298705520).

Almost surely, 2^305511124012 is an apocalyptic number.

It is an amenable number.

305511124012 is a deficient number, since it is larger than the sum of its proper divisors (229657808468).

305511124012 is a wasteful number, since it uses less digits than its factorization.

305511124012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17241 (or 17239 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 305511124012 its reverse (210421115503), we get a palindrome (515932239515).

The spelling of 305511124012 in words is "three hundred five billion, five hundred eleven million, one hundred twenty-four thousand, twelve".