120315203253 has 16 divisors (see below), whose sum is σ = 203708280960. Its totient is φ = 68751544608.

The previous prime is 120315203233. The next prime is 120315203291. The reversal of 120315203253 is 352302513021.

It is a happy number.

120315203253 is a `hidden beast` number, since 1 + 2 + 0 + 315 + 20 + 325 + 3 = 666.

It is not a de Polignac number, because 120315203253 - 2¹⁴ = 120315186869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120315203233) 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, 318294000 + ... + 318294377.

It is an arithmetic number, because the mean of its divisors is an integer number (12731767560).

Almost surely, 2^120315203253 is an apocalyptic number.

It is an amenable number.

120315203253 is a deficient number, since it is larger than the sum of its proper divisors (83393077707).

120315203253 is an equidigital number, since it uses as much as digits as its factorization.

120315203253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636588393 (or 636588387 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 120315203253 its reverse (352302513021), we get a palindrome (472617716274).

The spelling of 120315203253 in words is "one hundred twenty billion, three hundred fifteen million, two hundred three thousand, two hundred fifty-three".