105450055213 has 4 divisors (see below), whose sum is σ = 105595104160. Its totient is φ = 105305006268.

The previous prime is 105450055211. The next prime is 105450055223. The reversal of 105450055213 is 312550054501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312550054501 = 41 ⋅7623172061.

It is a cyclic number.

It is not a de Polignac number, because 105450055213 - 2¹ = 105450055211 is a prime.

It is a super-2 number, since 2×105450055213² (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 (105450055211) 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, 72523383 + ... + 72524836.

It is an arithmetic number, because the mean of its divisors is an integer number (26398776040).

Almost surely, 2^105450055213 is an apocalyptic number.

It is an amenable number.

105450055213 is a deficient number, since it is larger than the sum of its proper divisors (145048947).

105450055213 is an equidigital number, since it uses as much as digits as its factorization.

105450055213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145048946.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 105450055213 in words is "one hundred five billion, four hundred fifty million, fifty-five thousand, two hundred thirteen".