11232133231 has 16 divisors (see below), whose sum is σ = 12680076960. Its totient is φ = 9855569920.

The previous prime is 11232133181. The next prime is 11232133277. The reversal of 11232133231 is 13233123211.

It is a cyclic number.

It is not a de Polignac number, because 11232133231 - 2⁹ = 11232132719 is a prime.

It is a super-2 number, since 2×11232133231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232133531) 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 15 ways as a sum of consecutive naturals, for example, 1640391 + ... + 1647223.

It is an arithmetic number, because the mean of its divisors is an integer number (792504810).

Almost surely, 2^11232133231 is an apocalyptic number.

11232133231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11232133231 is a deficient number, since it is larger than the sum of its proper divisors (1447943729).

11232133231 is a wasteful number, since it uses less digits than its factorization.

11232133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12026.

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

Adding to 11232133231 its reverse (13233123211), we get a palindrome (24465256442).

The spelling of 11232133231 in words is "eleven billion, two hundred thirty-two million, one hundred thirty-three thousand, two hundred thirty-one".