120012613503 has 4 divisors (see below), whose sum is σ = 160016818008. Its totient is φ = 80008409000.

The previous prime is 120012613493. The next prime is 120012613519. The reversal of 120012613503 is 305316210021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120012613503 - 2⁵ = 120012613471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012613573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20002102248 + ... + 20002102253.

It is an arithmetic number, because the mean of its divisors is an integer number (40004204502).

Almost surely, 2^120012613503 is an apocalyptic number.

120012613503 is a deficient number, since it is larger than the sum of its proper divisors (40004204505).

120012613503 is an equidigital number, since it uses as much as digits as its factorization.

120012613503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40004204504.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 120012613503 its reverse (305316210021), we get a palindrome (425328823524).

The spelling of 120012613503 in words is "one hundred twenty billion, twelve million, six hundred thirteen thousand, five hundred three".