13203040431 has 8 divisors (see below), whose sum is σ = 20118918784. Its totient is φ = 7544594520.

The previous prime is 13203040427. The next prime is 13203040439. The reversal of 13203040431 is 13404030231.

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

It is not a de Polignac number, because 13203040431 - 2² = 13203040427 is a prime.

It is a super-2 number, since 2×13203040431² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 628716211 = 13203040431 / (1 + 3 + 2 + 0 + 3 + 0 + 4 + 0 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13203040398 and 13203040407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203040439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314358085 + ... + 314358126.

It is an arithmetic number, because the mean of its divisors is an integer number (2514864848).

Almost surely, 2^13203040431 is an apocalyptic number.

13203040431 is a deficient number, since it is larger than the sum of its proper divisors (6915878353).

13203040431 is an equidigital number, since it uses as much as digits as its factorization.

13203040431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628716221.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13203040431 its reverse (13404030231), we get a palindrome (26607070662).

The spelling of 13203040431 in words is "thirteen billion, two hundred three million, forty thousand, four hundred thirty-one".