1101331111 has 8 divisors (see below), whose sum is σ = 1185881040. Its totient is φ = 1018977408.

The previous prime is 1101331097. The next prime is 1101331151. The reversal of 1101331111 is 1111331011.

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

It is a cyclic number.

It is not a de Polignac number, because 1101331111 - 2⁷ = 1101330983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101331091 and 1101331100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101331151) 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, 548016 + ... + 550021.

It is an arithmetic number, because the mean of its divisors is an integer number (148235130).

Almost surely, 2^1101331111 is an apocalyptic number.

1101331111 is a deficient number, since it is larger than the sum of its proper divisors (84549929).

1101331111 is a wasteful number, since it uses less digits than its factorization.

1101331111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098113.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 1101331111 is about 33186.3090897436. The cubic root of 1101331111 is about 1032.6963353142.

Adding to 1101331111 its reverse (1111331011), we get a palindrome (2212662122).

It can be divided in two parts, 11013 and 31111, that added together give a palindrome (42124).

The spelling of 1101331111 in words is "one billion, one hundred one million, three hundred thirty-one thousand, one hundred eleven".