13400311 has 4 divisors (see below), whose sum is σ = 13685472. Its totient is φ = 13115152.

The previous prime is 13400281. The next prime is 13400341. The reversal of 13400311 is 11300431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11300431 = 71 ⋅159161.

It is an interprime number because it is at equal distance from previous prime (13400281) and next prime (13400341).

It is a cyclic number.

It is not a de Polignac number, because 13400311 - 2⁵ = 13400279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13400291 and 13400300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400341) 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, 142510 + ... + 142603.

It is an arithmetic number, because the mean of its divisors is an integer number (3421368).

Almost surely, 2^13400311 is an apocalyptic number.

13400311 is a deficient number, since it is larger than the sum of its proper divisors (285161).

13400311 is an equidigital number, since it uses as much as digits as its factorization.

13400311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285160.

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

The square root of 13400311 is about 3660.6435226610. The cubic root of 13400311 is about 237.5226113283.

Adding to 13400311 its reverse (11300431), we get a palindrome (24700742).

The spelling of 13400311 in words is "thirteen million, four hundred thousand, three hundred eleven".