11332431 has 24 divisors (see below), whose sum is σ = 18032976. Its totient is φ = 6800640.

The previous prime is 11332429. The next prime is 11332457. The reversal of 11332431 is 13423311.

It is not a de Polignac number, because 11332431 - 2¹ = 11332429 is a prime.

It is a super-2 number, since 2×11332431² = 256847984739522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11332231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10681 + ... + 11693.

It is an arithmetic number, because the mean of its divisors is an integer number (751374).

Almost surely, 2^11332431 is an apocalyptic number.

11332431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11332431 is a deficient number, since it is larger than the sum of its proper divisors (6700545).

11332431 is a wasteful number, since it uses less digits than its factorization.

11332431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143 (or 1140 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 11332431 is about 3366.3676269831. The cubic root of 11332431 is about 224.6161752400.

Adding to 11332431 its reverse (13423311), we get a palindrome (24755742).

The spelling of 11332431 in words is "eleven million, three hundred thirty-two thousand, four hundred thirty-one".