1121107271 has 4 divisors (see below), whose sum is σ = 1121234544. Its totient is φ = 1120980000.

The previous prime is 1121107243. The next prime is 1121107277. The reversal of 1121107271 is 1727011211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1727011211 = 2111 ⋅818101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121107271 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 (1121107277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49355 + ... + 68396.

It is an arithmetic number, because the mean of its divisors is an integer number (280308636).

Almost surely, 2^1121107271 is an apocalyptic number.

1121107271 is a deficient number, since it is larger than the sum of its proper divisors (127273).

1121107271 is an equidigital number, since it uses as much as digits as its factorization.

1121107271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127272.

The product of its (nonzero) digits is 196, while the sum is 23.

The square root of 1121107271 is about 33482.9399993489. The cubic root of 1121107271 is about 1038.8409396832.

Adding to 1121107271 its reverse (1727011211), we get a palindrome (2848118482).

The spelling of 1121107271 in words is "one billion, one hundred twenty-one million, one hundred seven thousand, two hundred seventy-one".