1120271261 has 4 divisors (see below), whose sum is σ = 1120359900. Its totient is φ = 1120182624.

The previous prime is 1120271233. The next prime is 1120271297. The reversal of 1120271261 is 1621720211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 159643225 + 960628036 = 12635^2 + 30994^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120271261 - 2²² = 1116076957 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 (1120271221) 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, 21416 + ... + 51953.

It is an arithmetic number, because the mean of its divisors is an integer number (280089975).

Almost surely, 2^1120271261 is an apocalyptic number.

It is an amenable number.

1120271261 is a deficient number, since it is larger than the sum of its proper divisors (88639).

1120271261 is an equidigital number, since it uses as much as digits as its factorization.

1120271261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88638.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 1120271261 is about 33470.4535523497. The cubic root of 1120271261 is about 1038.5826541467.

Adding to 1120271261 its reverse (1621720211), we get a palindrome (2741991472).

The spelling of 1120271261 in words is "one billion, one hundred twenty million, two hundred seventy-one thousand, two hundred sixty-one".