120323513 has 2 divisors, whose sum is σ = 120323514. Its totient is φ = 120323512.

The previous prime is 120323509. The next prime is 120323521. The reversal of 120323513 is 315323021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64850809 + 55472704 = 8053^2 + 7448^2 .

It is a cyclic number.

It is not a de Polignac number, because 120323513 - 2² = 120323509 is a prime.

It is a super-2 number, since 2×120323513² = 28955495561322338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120323113) 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 as a sum of consecutive naturals, namely, 60161756 + 60161757.

It is an arithmetic number, because the mean of its divisors is an integer number (60161757).

Almost surely, 2^120323513 is an apocalyptic number.

It is an amenable number.

120323513 is a deficient number, since it is larger than the sum of its proper divisors (1).

120323513 is an equidigital number, since it uses as much as digits as its factorization.

120323513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 120323513 is about 10969.2074918838. The cubic root of 120323513 is about 493.6852680614.

Adding to 120323513 its reverse (315323021), we get a palindrome (435646534).

The spelling of 120323513 in words is "one hundred twenty million, three hundred twenty-three thousand, five hundred thirteen".