30551205551111 has 24 divisors (see below), whose sum is σ = 36228984138720. Its totient is φ = 25678980355392.

The previous prime is 30551205551077. The next prime is 30551205551129. The reversal of 30551205551111 is 11115550215503.

It is not a de Polignac number, because 30551205551111 - 2⁶ = 30551205551047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30551205511111) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 1749365 + ... + 8010161.

It is an arithmetic number, because the mean of its divisors is an integer number (1509541005780).

Almost surely, 2^{30551205551111} is an apocalyptic number.

30551205551111 is a deficient number, since it is larger than the sum of its proper divisors (5677778587609).

30551205551111 is a wasteful number, since it uses less digits than its factorization.

30551205551111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262743 (or 6262736 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 35.

Adding to 30551205551111 its reverse (11115550215503), we get a palindrome (41666755766614).

The spelling of 30551205551111 in words is "thirty trillion, five hundred fifty-one billion, two hundred five million, five hundred fifty-one thousand, one hundred eleven".