111401355 has 32 divisors (see below), whose sum is σ = 194294016. Its totient is φ = 54175104.

The previous prime is 111401341. The next prime is 111401359. The reversal of 111401355 is 553104111.

It is a happy number.

It is not a de Polignac number, because 111401355 - 2⁶ = 111401291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111401359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12744 + ... + 19626.

It is an arithmetic number, because the mean of its divisors is an integer number (6071688).

Almost surely, 2^111401355 is an apocalyptic number.

111401355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

111401355 is a deficient number, since it is larger than the sum of its proper divisors (82892661).

111401355 is a wasteful number, since it uses less digits than its factorization.

111401355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6987.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 111401355 is about 10554.6840312726. The cubic root of 111401355 is about 481.1680969293.

Adding to 111401355 its reverse (553104111), we get a palindrome (664505466).

The spelling of 111401355 in words is "one hundred eleven million, four hundred one thousand, three hundred fifty-five".