105412320451 has 4 divisors (see below), whose sum is σ = 105540716304. Its totient is φ = 105283924600.

The previous prime is 105412320413. The next prime is 105412320467. The reversal of 105412320451 is 154023214501.

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 105412320451 - 2¹⁹ = 105411796163 is a prime.

It is a super-2 number, since 2×105412320451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105412320151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64196695 + ... + 64198336.

It is an arithmetic number, because the mean of its divisors is an integer number (26385179076).

Almost surely, 2^105412320451 is an apocalyptic number.

105412320451 is a deficient number, since it is larger than the sum of its proper divisors (128395853).

105412320451 is an equidigital number, since it uses as much as digits as its factorization.

105412320451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128395852.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 105412320451 its reverse (154023214501), we get a palindrome (259435534952).

The spelling of 105412320451 in words is "one hundred five billion, four hundred twelve million, three hundred twenty thousand, four hundred fifty-one".