53231101321 has 2 divisors, whose sum is σ = 53231101322. Its totient is φ = 53231101320.

The previous prime is 53231101279. The next prime is 53231101361. The reversal of 53231101321 is 12310113235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33198662025 + 20032439296 = 182205^2 + 141536^2 .

It is a cyclic number.

It is not a de Polignac number, because 53231101321 - 2⁹ = 53231100809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53231101292 and 53231101301.

It is not a weakly prime, because it can be changed into another prime (53231101361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26615550660 + 26615550661.

It is an arithmetic number, because the mean of its divisors is an integer number (26615550661).

Almost surely, 2^53231101321 is an apocalyptic number.

It is an amenable number.

53231101321 is a deficient number, since it is larger than the sum of its proper divisors (1).

53231101321 is an equidigital number, since it uses as much as digits as its factorization.

53231101321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 53231101321 its reverse (12310113235), we get a palindrome (65541214556).

The spelling of 53231101321 in words is "fifty-three billion, two hundred thirty-one million, one hundred one thousand, three hundred twenty-one".