305305021200063 has 16 divisors (see below), whose sum is σ = 407157118522880. Its totient is φ = 203494804086816.

The previous prime is 305305021200043. The next prime is 305305021200079. The reversal of 305305021200063 is 360002120503503.

It is not a de Polignac number, because 305305021200063 - 2⁸ = 305305021199807 is a prime.

It is a super-2 number, since 2×305305021200063² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 305305021200063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305305021200043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796789281 + ... + 797172357.

It is an arithmetic number, because the mean of its divisors is an integer number (25447319907680).

Almost surely, 2^{305305021200063} is an apocalyptic number.

305305021200063 is a deficient number, since it is larger than the sum of its proper divisors (101852097322817).

305305021200063 is a wasteful number, since it uses less digits than its factorization.

305305021200063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437046.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 305305021200063 its reverse (360002120503503), we get a palindrome (665307141703566).

The spelling of 305305021200063 in words is "three hundred five trillion, three hundred five billion, twenty-one million, two hundred thousand, sixty-three".