1111201101 has 6 divisors (see below), whose sum is σ = 1605068270. Its totient is φ = 740800728.

The previous prime is 1111201087. The next prime is 1111201121. The reversal of 1111201101 is 1011021111.

It can be written as a sum of positive squares in only one way, i.e., 589032900 + 522168201 = 24270^2 + 22851^2 .

It is not a de Polignac number, because 1111201101 - 2⁷ = 1111200973 is a prime.

It is a super-2 number, since 2×1111201101² = 2469535773727224402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 123466789 = 1111201101 / (1 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111201121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61733386 + ... + 61733403.

Almost surely, 2^1111201101 is an apocalyptic number.

It is an amenable number.

1111201101 is a deficient number, since it is larger than the sum of its proper divisors (493867169).

1111201101 is a wasteful number, since it uses less digits than its factorization.

1111201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123466795 (or 123466792 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 1111201101 is about 33334.6831543364. The cubic root of 1111201101 is about 1035.7721298472.

Adding to 1111201101 its reverse (1011021111), we get a palindrome (2122222212).

The spelling of 1111201101 in words is "one billion, one hundred eleven million, two hundred one thousand, one hundred one".