551321030231 has 8 divisors (see below), whose sum is σ = 561153020400. Its totient is φ = 541536196608.

The previous prime is 551321030173. The next prime is 551321030303. The reversal of 551321030231 is 132030123155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551321030231 is a prime.

It is a super-2 number, since 2×551321030231² (a number of 24 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 551321030231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551321030431) 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 7 ways as a sum of consecutive naturals, for example, 11765546 + ... + 11812311.

It is an arithmetic number, because the mean of its divisors is an integer number (70144127550).

Almost surely, 2^551321030231 is an apocalyptic number.

551321030231 is a deficient number, since it is larger than the sum of its proper divisors (9831990169).

551321030231 is a wasteful number, since it uses less digits than its factorization.

551321030231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23578273.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 551321030231 its reverse (132030123155), we get a palindrome (683351153386).

The spelling of 551321030231 in words is "five hundred fifty-one billion, three hundred twenty-one million, thirty thousand, two hundred thirty-one".