111355131 has 8 divisors (see below), whose sum is σ = 153263104. Its totient is φ = 71841960.

The previous prime is 111355063. The next prime is 111355141. The reversal of 111355131 is 131553111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111355131 - 2¹¹ = 111353083 is a prime.

It is a super-3 number, since 3×111355131³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111355098 and 111355107.

It is not an unprimeable number, because it can be changed into a prime (111355141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598591 + ... + 598776.

It is an arithmetic number, because the mean of its divisors is an integer number (19157888).

Almost surely, 2^111355131 is an apocalyptic number.

111355131 is a deficient number, since it is larger than the sum of its proper divisors (41907973).

111355131 is a wasteful number, since it uses less digits than its factorization.

111355131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197401.

The product of its digits is 225, while the sum is 21.

The square root of 111355131 is about 10552.4940653857. The cubic root of 111355131 is about 481.1015370236.

The spelling of 111355131 in words is "one hundred eleven million, three hundred fifty-five thousand, one hundred thirty-one".