213075123 has 4 divisors (see below), whose sum is σ = 284100168. Its totient is φ = 142050080.

The previous prime is 213075103. The next prime is 213075143. The reversal of 213075123 is 321570312.

213075123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (213075103) and next prime (213075143).

It is a cyclic number.

It is not a de Polignac number, because 213075123 - 2⁹ = 213074611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213075093 and 213075102.

It is not an unprimeable number, because it can be changed into a prime (213075103) 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, 35512518 + ... + 35512523.

It is an arithmetic number, because the mean of its divisors is an integer number (71025042).

Almost surely, 2^213075123 is an apocalyptic number.

213075123 is a deficient number, since it is larger than the sum of its proper divisors (71025045).

213075123 is an equidigital number, since it uses as much as digits as its factorization.

213075123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71025044.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 213075123 is about 14597.0929640117. The cubic root of 213075123 is about 597.2794636697.

The spelling of 213075123 in words is "two hundred thirteen million, seventy-five thousand, one hundred twenty-three".