120001331503 has 4 divisors (see below), whose sum is σ = 120049277008. Its totient is φ = 119953386000.

The previous prime is 120001331441. The next prime is 120001331519. The reversal of 120001331503 is 305133100021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305133100021 = 6737 ⋅45292133.

It is a cyclic number.

It is not a de Polignac number, because 120001331503 - 2¹³ = 120001323311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001331803) 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, 23968998 + ... + 23974003.

It is an arithmetic number, because the mean of its divisors is an integer number (30012319252).

Almost surely, 2^120001331503 is an apocalyptic number.

120001331503 is a deficient number, since it is larger than the sum of its proper divisors (47945505).

120001331503 is an equidigital number, since it uses as much as digits as its factorization.

120001331503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47945504.

The product of its (nonzero) digits is 270, while the sum is 19.

Adding to 120001331503 its reverse (305133100021), we get a palindrome (425134431524).

The spelling of 120001331503 in words is "one hundred twenty billion, one million, three hundred thirty-one thousand, five hundred three".