11403231331 has 8 divisors (see below), whose sum is σ = 11510351424. Its totient is φ = 11296608960.

The previous prime is 11403231299. The next prime is 11403231347. The reversal of 11403231331 is 13313230411.

11403231331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11403231331 - 2⁵ = 11403231299 is a prime.

It is a super-2 number, since 2×11403231331² (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 (11403231731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78315 + ... + 170116.

It is an arithmetic number, because the mean of its divisors is an integer number (1438793928).

Almost surely, 2^11403231331 is an apocalyptic number.

11403231331 is a deficient number, since it is larger than the sum of its proper divisors (107120093).

11403231331 is a wasteful number, since it uses less digits than its factorization.

11403231331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248861.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 11403231331 its reverse (13313230411), we get a palindrome (24716461742).

The spelling of 11403231331 in words is "eleven billion, four hundred three million, two hundred thirty-one thousand, three hundred thirty-one".