55322313011231 has 32 divisors (see below), whose sum is σ = 69871358325888. Its totient is φ = 42719701340160.

The previous prime is 55322313011227. The next prime is 55322313011293. The reversal of 55322313011231 is 13211031322355.

It is a cyclic number.

It is not a de Polignac number, because 55322313011231 - 2² = 55322313011227 is a prime.

It is a super-2 number, since 2×55322313011231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55322313011201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106711820 + ... + 107228993.

It is an arithmetic number, because the mean of its divisors is an integer number (2183479947684).

Almost surely, 2^{55322313011231} is an apocalyptic number.

55322313011231 is a deficient number, since it is larger than the sum of its proper divisors (14549045314657).

55322313011231 is a wasteful number, since it uses less digits than its factorization.

55322313011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213940931.

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 55322313011231 its reverse (13211031322355), we get a palindrome (68533344333586).

The spelling of 55322313011231 in words is "fifty-five trillion, three hundred twenty-two billion, three hundred thirteen million, eleven thousand, two hundred thirty-one".