120315203254 has 4 divisors (see below), whose sum is σ = 180472804884. Its totient is φ = 60157601626.

The previous prime is 120315203233. The next prime is 120315203291. The reversal of 120315203254 is 452302513021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452302513021 = 1997 ⋅226490993.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30078800812 + ... + 30078800815.

It is an arithmetic number, because the mean of its divisors is an integer number (45118201221).

Almost surely, 2^120315203254 is an apocalyptic number.

120315203254 is a deficient number, since it is larger than the sum of its proper divisors (60157601630).

120315203254 is an equidigital number, since it uses as much as digits as its factorization.

120315203254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60157601629.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 120315203254 its reverse (452302513021), we get a palindrome (572617716275).

The spelling of 120315203254 in words is "one hundred twenty billion, three hundred fifteen million, two hundred three thousand, two hundred fifty-four".