13020432403 has 4 divisors (see below), whose sum is σ = 14204108088. Its totient is φ = 11836756720.

The previous prime is 13020432353. The next prime is 13020432409. The reversal of 13020432403 is 30423402031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30423402031 = 11 ⋅2765763821.

It is a cyclic number.

It is not a de Polignac number, because 13020432403 - 2²⁹ = 12483561491 is a prime.

It is a super-2 number, since 2×13020432403² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13020432409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591837826 + ... + 591837847.

It is an arithmetic number, because the mean of its divisors is an integer number (3551027022).

Almost surely, 2^13020432403 is an apocalyptic number.

13020432403 is a deficient number, since it is larger than the sum of its proper divisors (1183675685).

13020432403 is a wasteful number, since it uses less digits than its factorization.

13020432403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183675684.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 13020432403 its reverse (30423402031), we get a palindrome (43443834434).

The spelling of 13020432403 in words is "thirteen billion, twenty million, four hundred thirty-two thousand, four hundred three".