206120523 has 8 divisors (see below), whose sum is σ = 314088448. Its totient is φ = 117783144.

The previous prime is 206120507. The next prime is 206120527. The reversal of 206120523 is 325021602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206120523 - 2⁴ = 206120507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 9815263 = 206120523 / (2 + 0 + 6 + 1 + 2 + 0 + 5 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206120523.

It is not an unprimeable number, because it can be changed into a prime (206120527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4907611 + ... + 4907652.

It is an arithmetic number, because the mean of its divisors is an integer number (39261056).

Almost surely, 2^206120523 is an apocalyptic number.

206120523 is a deficient number, since it is larger than the sum of its proper divisors (107967925).

206120523 is an equidigital number, since it uses as much as digits as its factorization.

206120523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815273.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 206120523 is about 14356.8980981269. The cubic root of 206120523 is about 590.7092141724.

The spelling of 206120523 in words is "two hundred six million, one hundred twenty thousand, five hundred twenty-three".