105321633421 has 8 divisors (see below), whose sum is σ = 108172699544. Its totient is φ = 102470806080.

The previous prime is 105321633401. The next prime is 105321633433. The reversal of 105321633421 is 124336123501.

It can be written as a sum of positive squares in 4 ways, for example, as 70018981321 + 35302652100 = 264611^2 + 187890^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 105321633421 - 2⁷ = 105321633293 is a prime.

It is a super-2 number, since 2×105321633421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105321633401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175611 + ... + 1262023.

It is an arithmetic number, because the mean of its divisors is an integer number (13521587443).

Almost surely, 2^105321633421 is an apocalyptic number.

It is an amenable number.

105321633421 is a deficient number, since it is larger than the sum of its proper divisors (2851066123).

105321633421 is an equidigital number, since it uses as much as digits as its factorization.

105321633421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119391.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 105321633421 its reverse (124336123501), we get a palindrome (229657756922).

The spelling of 105321633421 in words is "one hundred five billion, three hundred twenty-one million, six hundred thirty-three thousand, four hundred twenty-one".