11132343231 has 4 divisors (see below), whose sum is σ = 14843124312. Its totient is φ = 7421562152.

The previous prime is 11132343191. The next prime is 11132343239. The reversal of 11132343231 is 13234323111.

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 11132343231 - 2¹⁷ = 11132212159 is a prime.

It is a super-2 number, since 2×11132343231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132343239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855390536 + ... + 1855390541.

It is an arithmetic number, because the mean of its divisors is an integer number (3710781078).

Almost surely, 2^11132343231 is an apocalyptic number.

11132343231 is a deficient number, since it is larger than the sum of its proper divisors (3710781081).

11132343231 is an equidigital number, since it uses as much as digits as its factorization.

11132343231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710781080.

The product of its digits is 1296, while the sum is 24.

Adding to 11132343231 its reverse (13234323111), we get a palindrome (24366666342).

It can be divided in two parts, 11 and 132343231, that multiplied together give a palindrome (1455775541).

The spelling of 11132343231 in words is "eleven billion, one hundred thirty-two million, three hundred forty-three thousand, two hundred thirty-one".