11321755 has 4 divisors (see below), whose sum is σ = 13586112. Its totient is φ = 9057400.

The previous prime is 11321753. The next prime is 11321759. The reversal of 11321755 is 55712311.

11321755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55712311 = 461 ⋅120851.

It is not a de Polignac number, because 11321755 - 2¹ = 11321753 is a prime.

It is a super-3 number, since 3×11321755³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321753) 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, 1132171 + ... + 1132180.

It is an arithmetic number, because the mean of its divisors is an integer number (3396528).

Almost surely, 2^11321755 is an apocalyptic number.

11321755 is a deficient number, since it is larger than the sum of its proper divisors (2264357).

11321755 is an equidigital number, since it uses as much as digits as its factorization.

11321755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264356.

The product of its digits is 1050, while the sum is 25.

The square root of 11321755 is about 3364.7815679476. The cubic root of 11321755 is about 224.5456179837.

The spelling of 11321755 in words is "eleven million, three hundred twenty-one thousand, seven hundred fifty-five".