11431055 has 16 divisors (see below), whose sum is σ = 14624064. Its totient is φ = 8547840.

The previous prime is 11431037. The next prime is 11431067. The reversal of 11431055 is 55013411.

It is a de Polignac number, because none of the positive numbers 2^k-11431055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15014 + ... + 15756.

It is an arithmetic number, because the mean of its divisors is an integer number (914004).

Almost surely, 2^11431055 is an apocalyptic number.

11431055 is a deficient number, since it is larger than the sum of its proper divisors (3193009).

11431055 is a wasteful number, since it uses less digits than its factorization.

11431055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 11431055 is about 3380.9843241281. The cubic root of 11431055 is about 225.2658914231.

Adding to 11431055 its reverse (55013411), we get a palindrome (66444466).

The spelling of 11431055 in words is "eleven million, four hundred thirty-one thousand, fifty-five".