111401420 has 72 divisors (see below), whose sum is σ = 264521376. Its totient is φ = 39316992.

The previous prime is 111401419. The next prime is 111401429. The reversal of 111401420 is 24104111.

It is a super-3 number, since 3×111401420³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111401395 and 111401404.

It is not an unprimeable number, because it can be changed into a prime (111401429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77024 + ... + 78456.

It is an arithmetic number, because the mean of its divisors is an integer number (3673908).

Almost surely, 2^111401420 is an apocalyptic number.

111401420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111401420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132260688).

111401420 is an abundant number, since it is smaller than the sum of its proper divisors (153119956).

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

111401420 is a wasteful number, since it uses less digits than its factorization.

111401420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 111401420 is about 10554.6871104737. The cubic root of 111401420 is about 481.1681905126.

Adding to 111401420 its reverse (24104111), we get a palindrome (135505531).

The spelling of 111401420 in words is "one hundred eleven million, four hundred one thousand, four hundred twenty".