101044213145 has 4 divisors (see below), whose sum is σ = 121253055780. Its totient is φ = 80835370512.

The previous prime is 101044213129. The next prime is 101044213163. The reversal of 101044213145 is 541312440101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50779918336 + 50264294809 = 225344^2 + 224197^2 .

It is a cyclic number.

It is not a de Polignac number, because 101044213145 - 2⁴ = 101044213129 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10104421310 + ... + 10104421319.

It is an arithmetic number, because the mean of its divisors is an integer number (30313263945).

Almost surely, 2^101044213145 is an apocalyptic number.

It is an amenable number.

101044213145 is a deficient number, since it is larger than the sum of its proper divisors (20208842635).

101044213145 is an equidigital number, since it uses as much as digits as its factorization.

101044213145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20208842634.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 101044213145 its reverse (541312440101), we get a palindrome (642356653246).

The spelling of 101044213145 in words is "one hundred one billion, forty-four million, two hundred thirteen thousand, one hundred forty-five".