13401031 has 4 divisors (see below), whose sum is σ = 15315472. Its totient is φ = 11486592.

The previous prime is 13400971. The next prime is 13401041. The reversal of 13401031 is 13010431.

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 13401031 - 2⁷ = 13400903 is a prime.

It is a super-2 number, since 2×13401031² = 359175263725922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401041) 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, 957210 + ... + 957223.

It is an arithmetic number, because the mean of its divisors is an integer number (3828868).

Almost surely, 2^13401031 is an apocalyptic number.

13401031 is a deficient number, since it is larger than the sum of its proper divisors (1914441).

13401031 is an equidigital number, since it uses as much as digits as its factorization.

13401031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914440.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13401031 is about 3660.7418647045. The cubic root of 13401031 is about 237.5268652897.

Adding to 13401031 its reverse (13010431), we get a palindrome (26411462).

The spelling of 13401031 in words is "thirteen million, four hundred one thousand, thirty-one".