120199523 has 2 divisors, whose sum is σ = 120199524. Its totient is φ = 120199522.

The previous prime is 120199511. The next prime is 120199549. The reversal of 120199523 is 325991021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120199523 - 2⁴ = 120199507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120199523.

It is not a weakly prime, because it can be changed into another prime (120109523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60099761 + 60099762.

It is an arithmetic number, because the mean of its divisors is an integer number (60099762).

Almost surely, 2^120199523 is an apocalyptic number.

120199523 is a deficient number, since it is larger than the sum of its proper divisors (1).

120199523 is an equidigital number, since it uses as much as digits as its factorization.

120199523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 120199523 is about 10963.5543050600. The cubic root of 120199523 is about 493.5156335135.

The spelling of 120199523 in words is "one hundred twenty million, one hundred ninety-nine thousand, five hundred twenty-three".