12003520451 has 16 divisors (see below), whose sum is σ = 13121702496. Its totient is φ = 10913584896.

The previous prime is 12003520433. The next prime is 12003520517. The reversal of 12003520451 is 15402530021.

It is a cyclic number.

It is not a de Polignac number, because 12003520451 - 2⁶ = 12003520387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12003520411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725396 + ... + 741758.

It is an arithmetic number, because the mean of its divisors is an integer number (820106406).

Almost surely, 2^12003520451 is an apocalyptic number.

12003520451 is a deficient number, since it is larger than the sum of its proper divisors (1118182045).

12003520451 is a wasteful number, since it uses less digits than its factorization.

12003520451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17222.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 12003520451 in words is "twelve billion, three million, five hundred twenty thousand, four hundred fifty-one".