105450321451 has 4 divisors (see below), whose sum is σ = 107902654552. Its totient is φ = 102997988352.

The previous prime is 105450321443. The next prime is 105450321541. The reversal of 105450321451 is 154123054501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105450321451 - 2³ = 105450321443 is a prime.

It is a super-3 number, since 3×105450321451³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105450321421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226166486 + ... + 1226166571.

It is an arithmetic number, because the mean of its divisors is an integer number (26975663638).

Almost surely, 2^105450321451 is an apocalyptic number.

105450321451 is a deficient number, since it is larger than the sum of its proper divisors (2452333101).

105450321451 is an equidigital number, since it uses as much as digits as its factorization.

105450321451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452333100.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 105450321451 its reverse (154123054501), we get a palindrome (259573375952).

The spelling of 105450321451 in words is "one hundred five billion, four hundred fifty million, three hundred twenty-one thousand, four hundred fifty-one".