1101242191 has 8 divisors (see below), whose sum is σ = 1265517344. Its totient is φ = 938705760.

The previous prime is 1101242183. The next prime is 1101242203. The reversal of 1101242191 is 1912421011.

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 1101242191 - 2³ = 1101242183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101242141) 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, 433320 + ... + 435853.

It is an arithmetic number, because the mean of its divisors is an integer number (158189668).

Almost surely, 2^1101242191 is an apocalyptic number.

1101242191 is a deficient number, since it is larger than the sum of its proper divisors (164275153).

1101242191 is an equidigital number, since it uses as much as digits as its factorization.

1101242191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869361.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 1101242191 is about 33184.9693536095. The cubic root of 1101242191 is about 1032.6685417262.

The spelling of 1101242191 in words is "one billion, one hundred one million, two hundred forty-two thousand, one hundred ninety-one".