523120213 has 16 divisors (see below), whose sum is σ = 652708224. Its totient is φ = 407309760.

The previous prime is 523120207. The next prime is 523120223. The reversal of 523120213 is 312021325.

It is a de Polignac number, because none of the positive numbers 2^k-523120213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523120223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170731 + ... + 173767.

It is an arithmetic number, because the mean of its divisors is an integer number (40794264).

Almost surely, 2^523120213 is an apocalyptic number.

It is an amenable number.

523120213 is a deficient number, since it is larger than the sum of its proper divisors (129588011).

523120213 is a wasteful number, since it uses less digits than its factorization.

523120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5292.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 523120213 is about 22871.8213747834. The cubic root of 523120213 is about 805.7503454796.

Adding to 523120213 its reverse (312021325), we get a palindrome (835141538).

The spelling of 523120213 in words is "five hundred twenty-three million, one hundred twenty thousand, two hundred thirteen".