551033101321 has 4 divisors (see below), whose sum is σ = 574991062272. Its totient is φ = 527075140372.

The previous prime is 551033101319. The next prime is 551033101373. The reversal of 551033101321 is 123101330155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 551033101321 - 2¹ = 551033101319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551033101621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11978980441 + ... + 11978980486.

It is an arithmetic number, because the mean of its divisors is an integer number (143747765568).

Almost surely, 2^551033101321 is an apocalyptic number.

It is an amenable number.

551033101321 is a deficient number, since it is larger than the sum of its proper divisors (23957960951).

551033101321 is a wasteful number, since it uses less digits than its factorization.

551033101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23957960950.

The product of its (nonzero) digits is 1350, while the sum is 25.

Adding to 551033101321 its reverse (123101330155), we get a palindrome (674134431476).

The spelling of 551033101321 in words is "five hundred fifty-one billion, thirty-three million, one hundred one thousand, three hundred twenty-one".