103213055 has 16 divisors (see below), whose sum is σ = 137023488. Its totient is φ = 74004000.

The previous prime is 103213051. The next prime is 103213057. The reversal of 103213055 is 550312301.

It is not a de Polignac number, because 103213055 - 2² = 103213051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103213051) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9311 + ... + 17120.

It is an arithmetic number, because the mean of its divisors is an integer number (8563968).

Almost surely, 2^103213055 is an apocalyptic number.

103213055 is a deficient number, since it is larger than the sum of its proper divisors (33810433).

103213055 is a wasteful number, since it uses less digits than its factorization.

103213055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26518.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 103213055 is about 10159.3826091943. The cubic root of 103213055 is about 469.0777978576.

Adding to 103213055 its reverse (550312301), we get a palindrome (653525356).

The spelling of 103213055 in words is "one hundred three million, two hundred thirteen thousand, fifty-five".