111231421032 has 16 divisors (see below), whose sum is σ = 278078552640. Its totient is φ = 37077140336.

The previous prime is 111231420991. The next prime is 111231421087. The reversal of 111231421032 is 230124132111.

It is an unprimeable number.

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, 2317321248 + ... + 2317321295.

It is an arithmetic number, because the mean of its divisors is an integer number (17379909540).

Almost surely, 2^111231421032 is an apocalyptic number.

111231421032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111231421032 is an abundant number, since it is smaller than the sum of its proper divisors (166847131608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111231421032 is a wasteful number, since it uses less digits than its factorization.

111231421032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634642552 (or 4634642548 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111231421032 its reverse (230124132111), we get a palindrome (341355553143).

The spelling of 111231421032 in words is "one hundred eleven billion, two hundred thirty-one million, four hundred twenty-one thousand, thirty-two".