1131100111 has 8 divisors (see below), whose sum is σ = 1143357984. Its totient is φ = 1118863200.

The previous prime is 1131100093. The next prime is 1131100121. The reversal of 1131100111 is 1110011311.

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 1131100111 - 2²³ = 1122711503 is a prime.

It is a super-2 number, since 2×1131100111² = 2558774922208424642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131100121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118945 + ... + 128101.

It is an arithmetic number, because the mean of its divisors is an integer number (142919748).

Almost surely, 2^1131100111 is an apocalyptic number.

1131100111 is a deficient number, since it is larger than the sum of its proper divisors (12257873).

1131100111 is a wasteful number, since it uses less digits than its factorization.

1131100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481.

The product of its (nonzero) digits is 3, while the sum is 10.

The square root of 1131100111 is about 33631.8318115443. The cubic root of 1131100111 is about 1041.9183377340.

Adding to 1131100111 its reverse (1110011311), we get a palindrome (2241111422).

The spelling of 1131100111 in words is "one billion, one hundred thirty-one million, one hundred thousand, one hundred eleven".