12603219901 has 4 divisors (see below), whose sum is σ = 12603925404. Its totient is φ = 12602514400.

The previous prime is 12603219857. The next prime is 12603219907. The reversal of 12603219901 is 10991230621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3300617401 + 9302602500 = 57451^2 + 96450^2 .

It is a cyclic number.

It is not a de Polignac number, because 12603219901 - 2⁹ = 12603219389 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 (12603219907) 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, 325240 + ... + 361921.

It is an arithmetic number, because the mean of its divisors is an integer number (3150981351).

Almost surely, 2^12603219901 is an apocalyptic number.

It is an amenable number.

12603219901 is a deficient number, since it is larger than the sum of its proper divisors (705503).

12603219901 is an equidigital number, since it uses as much as digits as its factorization.

12603219901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705502.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 12603219901 in words is "twelve billion, six hundred three million, two hundred nineteen thousand, nine hundred one".