105452303821 has 2 divisors, whose sum is σ = 105452303822. Its totient is φ = 105452303820.

The previous prime is 105452303819. The next prime is 105452303857. The reversal of 105452303821 is 128303254501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76258822500 + 29193481321 = 276150^2 + 170861^2 .

It is a cyclic number.

It is not a de Polignac number, because 105452303821 - 2¹ = 105452303819 is a prime.

It is a super-2 number, since 2×105452303821² (a number of 23 digits) contains 22 as substring.

Together with 105452303819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105452303881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52726151910 + 52726151911.

It is an arithmetic number, because the mean of its divisors is an integer number (52726151911).

Almost surely, 2^105452303821 is an apocalyptic number.

It is an amenable number.

105452303821 is a deficient number, since it is larger than the sum of its proper divisors (1).

105452303821 is an equidigital number, since it uses as much as digits as its factorization.

105452303821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 105452303821 in words is "one hundred five billion, four hundred fifty-two million, three hundred three thousand, eight hundred twenty-one".