11311401 has 4 divisors (see below), whose sum is σ = 15081872. Its totient is φ = 7540932.

The previous prime is 11311397. The next prime is 11311453. The reversal of 11311401 is 10411311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11311401 - 2² = 11311397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1885231 + ... + 1885236.

It is an arithmetic number, because the mean of its divisors is an integer number (3770468).

Almost surely, 2^11311401 is an apocalyptic number.

It is an amenable number.

11311401 is a deficient number, since it is larger than the sum of its proper divisors (3770471).

11311401 is an equidigital number, since it uses as much as digits as its factorization.

11311401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770470.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 11311401 is about 3363.2426317469. The cubic root of 11311401 is about 224.4771464312.

Adding to 11311401 its reverse (10411311), we get a palindrome (21722712).

The spelling of 11311401 in words is "eleven million, three hundred eleven thousand, four hundred one".