13013403 has 16 divisors (see below), whose sum is σ = 18794496. Its totient is φ = 7961760.

The previous prime is 13013393. The next prime is 13013417. The reversal of 13013403 is 30431031.

13013403 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 13013403 - 2⁴ = 13013387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13013443) 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, 6576 + ... + 8322.

It is an arithmetic number, because the mean of its divisors is an integer number (1174656).

Almost surely, 2^13013403 is an apocalyptic number.

13013403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13013403 is a deficient number, since it is larger than the sum of its proper divisors (5781093).

13013403 is a wasteful number, since it uses less digits than its factorization.

13013403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13013403 is about 3607.4094583232. The cubic root of 13013403 is about 235.2142485525.

Adding to 13013403 its reverse (30431031), we get a palindrome (43444434).

The spelling of 13013403 in words is "thirteen million, thirteen thousand, four hundred three".