12990720903 has 8 divisors (see below), whose sum is σ = 17879702016. Its totient is φ = 8381110200.

The previous prime is 12990720889. The next prime is 12990720917. The reversal of 12990720903 is 30902709921.

It is a happy number.

12990720903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12990720889) and next prime (12990720917).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12990720903 - 2⁵ = 12990720871 is a prime.

It is a super-2 number, since 2×12990720903² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990720923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69842493 + ... + 69842678.

It is an arithmetic number, because the mean of its divisors is an integer number (2234962752).

Almost surely, 2^12990720903 is an apocalyptic number.

12990720903 is a deficient number, since it is larger than the sum of its proper divisors (4888981113).

12990720903 is a wasteful number, since it uses less digits than its factorization.

12990720903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139685205.

The product of its (nonzero) digits is 61236, while the sum is 42.

The spelling of 12990720903 in words is "twelve billion, nine hundred ninety million, seven hundred twenty thousand, nine hundred three".