111631041 has 16 divisors (see below), whose sum is σ = 167424320. Its totient is φ = 74419236.

The previous prime is 111631021. The next prime is 111631073. The reversal of 111631041 is 140136111.

It is not a de Polignac number, because 111631041 - 2⁶ = 111630977 is a prime.

It is a super-2 number, since 2×111631041² = 24922978629487362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111631001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23335 + ... + 27708.

It is an arithmetic number, because the mean of its divisors is an integer number (10464020).

Almost surely, 2^111631041 is an apocalyptic number.

It is an amenable number.

111631041 is a deficient number, since it is larger than the sum of its proper divisors (55793279).

111631041 is an frugal number, since it uses more digits than its factorization.

111631041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51064 (or 51046 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 111631041 is about 10565.5591901234. The cubic root of 111631041 is about 481.4985588218.

Adding to 111631041 its reverse (140136111), we get a palindrome (251767152).

The spelling of 111631041 in words is "one hundred eleven million, six hundred thirty-one thousand, forty-one".