13203244989 has 48 divisors (see below), whose sum is σ = 22034987520. Its totient is φ = 7534127520.

The previous prime is 13203244981. The next prime is 13203245021. The reversal of 13203244989 is 98944230231.

13203244989 is a `hidden beast` number, since 1 + 320 + 3 + 244 + 9 + 89 = 666.

It is not a de Polignac number, because 13203244989 - 2³ = 13203244981 is a prime.

It is a super-2 number, since 2×13203244989² (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 (13203244981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 285072 + ... + 328134.

It is an arithmetic number, because the mean of its divisors is an integer number (459062240).

Almost surely, 2^13203244989 is an apocalyptic number.

13203244989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13203244989 is a deficient number, since it is larger than the sum of its proper divisors (8831742531).

13203244989 is a wasteful number, since it uses less digits than its factorization.

13203244989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43262 (or 43259 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 13203244989 in words is "thirteen billion, two hundred three million, two hundred forty-four thousand, nine hundred eighty-nine".