111401320 has 16 divisors (see below), whose sum is σ = 250653060. Its totient is φ = 44560512.

The previous prime is 111401317. The next prime is 111401341. The reversal of 111401320 is 23104111.

It can be written as a sum of positive squares in 2 ways, for example, as 102292996 + 9108324 = 10114^2 + 3018^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111401320.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392477 + ... + 1392556.

Almost surely, 2^111401320 is an apocalyptic number.

111401320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111401320 is an abundant number, since it is smaller than the sum of its proper divisors (139251740).

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

111401320 is a wasteful number, since it uses less digits than its factorization.

111401320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785044 (or 2785040 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 111401320 is about 10554.6823732408. The cubic root of 111401320 is about 481.1680465383.

Adding to 111401320 its reverse (23104111), we get a palindrome (134505431).

The spelling of 111401320 in words is "one hundred eleven million, four hundred one thousand, three hundred twenty".