13430031 has 4 divisors (see below), whose sum is σ = 17906712. Its totient is φ = 8953352.

The previous prime is 13430009. The next prime is 13430063. The reversal of 13430031 is 13003431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13430031 - 2⁶ = 13429967 is a prime.

It is a super-2 number, since 2×13430031² = 360731465321922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13430231) 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, 2238336 + ... + 2238341.

It is an arithmetic number, because the mean of its divisors is an integer number (4476678).

Almost surely, 2^13430031 is an apocalyptic number.

13430031 is a deficient number, since it is larger than the sum of its proper divisors (4476681).

13430031 is an equidigital number, since it uses as much as digits as its factorization.

13430031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476680.

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

The square root of 13430031 is about 3664.7006699047. The cubic root of 13430031 is about 237.6980788897.

Adding to 13430031 its reverse (13003431), we get a palindrome (26433462).

The spelling of 13430031 in words is "thirteen million, four hundred thirty thousand, thirty-one".