13402311 has 8 divisors (see below), whose sum is σ = 19244400. Its totient is φ = 8247552.

The previous prime is 13402309. The next prime is 13402327. The reversal of 13402311 is 11320431.

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

It is not a de Polignac number, because 13402311 - 2¹ = 13402309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13406311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171786 + ... + 171863.

It is an arithmetic number, because the mean of its divisors is an integer number (2405550).

Almost surely, 2^13402311 is an apocalyptic number.

13402311 is a deficient number, since it is larger than the sum of its proper divisors (5842089).

13402311 is a wasteful number, since it uses less digits than its factorization.

13402311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343665.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13402311 is about 3660.9166884812. The cubic root of 13402311 is about 237.5344275115.

Adding to 13402311 its reverse (11320431), we get a palindrome (24722742).

The spelling of 13402311 in words is "thirteen million, four hundred two thousand, three hundred eleven".