11111323131232 has 48 divisors (see below), whose sum is σ = 21908643402240. Its totient is φ = 5547225218688.

The previous prime is 11111323131179. The next prime is 11111323131253. The reversal of 11111323131232 is 23213132311111.

It is a junction number, because it is equal to n+sod(n) for n = 11111323131197 and 11111323131206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211348213 + ... + 211400779.

It is an arithmetic number, because the mean of its divisors is an integer number (456430070880).

Almost surely, 2^{11111323131232} is an apocalyptic number.

It is an amenable number.

11111323131232 is a deficient number, since it is larger than the sum of its proper divisors (10797320271008).

11111323131232 is an equidigital number, since it uses as much as digits as its factorization.

11111323131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62483 (or 62475 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

Adding to 11111323131232 its reverse (23213132311111), we get a palindrome (34324455442343).

The spelling of 11111323131232 in words is "eleven trillion, one hundred eleven billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred thirty-two".