12603720031 has 16 divisors (see below), whose sum is σ = 14544129600. Its totient is φ = 10698386688.

The previous prime is 12603720013. The next prime is 12603720037. The reversal of 12603720031 is 13002730621.

It is a cyclic number.

It is not a de Polignac number, because 12603720031 - 2⁹ = 12603719519 is a prime.

It is a super-2 number, since 2×12603720031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12603719978 and 12603720005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12603720037) 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, 2079201 + ... + 2085253.

It is an arithmetic number, because the mean of its divisors is an integer number (909008100).

Almost surely, 2^12603720031 is an apocalyptic number.

12603720031 is a deficient number, since it is larger than the sum of its proper divisors (1940409569).

12603720031 is a wasteful number, since it uses less digits than its factorization.

12603720031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8898.

The product of its (nonzero) digits is 1512, while the sum is 25.

The spelling of 12603720031 in words is "twelve billion, six hundred three million, seven hundred twenty thousand, thirty-one".