11401132331 has 4 divisors (see below), whose sum is σ = 12071787192. Its totient is φ = 10730477472.

The previous prime is 11401132241. The next prime is 11401132333. The reversal of 11401132331 is 13323110411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11401132331 - 2¹⁰ = 11401131307 is a prime.

It is a super-2 number, since 2×11401132331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11401132333) 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, 335327405 + ... + 335327438.

It is an arithmetic number, because the mean of its divisors is an integer number (3017946798).

Almost surely, 2^11401132331 is an apocalyptic number.

11401132331 is a deficient number, since it is larger than the sum of its proper divisors (670654861).

11401132331 is an equidigital number, since it uses as much as digits as its factorization.

11401132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670654860.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11401132331 its reverse (13323110411), we get a palindrome (24724242742).

The spelling of 11401132331 in words is "eleven billion, four hundred one million, one hundred thirty-two thousand, three hundred thirty-one".