1131122101 has 8 divisors (see below), whose sum is σ = 1136083104. Its totient is φ = 1126172880.

The previous prime is 1131122053. The next prime is 1131122123. The reversal of 1131122101 is 1012211311.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131122101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131122501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226831 + ... + 231763.

It is an arithmetic number, because the mean of its divisors is an integer number (142010388).

Almost surely, 2^1131122101 is an apocalyptic number.

It is an amenable number.

1131122101 is a deficient number, since it is larger than the sum of its proper divisors (4961003).

1131122101 is an equidigital number, since it uses as much as digits as its factorization.

1131122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5891.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1131122101 is about 33632.1587323799. The cubic root of 1131122101 is about 1041.9250897551.

Adding to 1131122101 its reverse (1012211311), we get a palindrome (2143333412).

The spelling of 1131122101 in words is "one billion, one hundred thirty-one million, one hundred twenty-two thousand, one hundred one".