13012803 has 18 divisors (see below), whose sum is σ = 19970964. Its totient is φ = 8163264.

The previous prime is 13012799. The next prime is 13012849. The reversal of 13012803 is 30821031.

13012803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13012803 - 2² = 13012799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13012873) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 100 + ... + 5102.

It is an arithmetic number, because the mean of its divisors is an integer number (1109498).

Almost surely, 2^13012803 is an apocalyptic number.

13012803 is a deficient number, since it is larger than the sum of its proper divisors (6958161).

13012803 is a wasteful number, since it uses less digits than its factorization.

13012803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043 (or 5023 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 13012803 is about 3607.3262951943. The cubic root of 13012803 is about 235.2106335433.

Adding to 13012803 its reverse (30821031), we get a palindrome (43833834).

The spelling of 13012803 in words is "thirteen million, twelve thousand, eight hundred three".