112003430521 has 4 divisors (see below), whose sum is σ = 112054834000. Its totient is φ = 111952027044.

The previous prime is 112003430431. The next prime is 112003430551. The reversal of 112003430521 is 125034300211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 125034300211 = 4787 ⋅26119553.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112003430521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112003430492 and 112003430501.

It is not an unprimeable number, because it can be changed into a prime (112003430551) 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, 25698471 + ... + 25702828.

It is an arithmetic number, because the mean of its divisors is an integer number (28013708500).

Almost surely, 2^112003430521 is an apocalyptic number.

It is an amenable number.

112003430521 is a deficient number, since it is larger than the sum of its proper divisors (51403479).

112003430521 is an equidigital number, since it uses as much as digits as its factorization.

112003430521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51403478.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 112003430521 its reverse (125034300211), we get a palindrome (237037730732).

The spelling of 112003430521 in words is "one hundred twelve billion, three million, four hundred thirty thousand, five hundred twenty-one".