305020523012152 has 32 divisors (see below), whose sum is σ = 574317816177600. Its totient is φ = 151869655022464.

The previous prime is 305020523012119. The next prime is 305020523012159. The reversal of 305020523012152 is 251210325020503.

It is a super-2 number, since 2×305020523012152² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305020523012159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29912863 + ... + 38792014.

It is an arithmetic number, because the mean of its divisors is an integer number (17947431755550).

Almost surely, 2^{305020523012152} is an apocalyptic number.

It is an amenable number.

305020523012152 is a deficient number, since it is larger than the sum of its proper divisors (269297293165448).

305020523012152 is a wasteful number, since it uses less digits than its factorization.

305020523012152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68707215 (or 68707211 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 305020523012152 its reverse (251210325020503), we get a palindrome (556230848032655).

The spelling of 305020523012152 in words is "three hundred five trillion, twenty billion, five hundred twenty-three million, twelve thousand, one hundred fifty-two".