1121919261 has 8 divisors (see below), whose sum is σ = 1516384320. Its totient is φ = 737700192.

The previous prime is 1121919247. The next prime is 1121919299. The reversal of 1121919261 is 1629191211.

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

It is not a de Polignac number, because 1121919261 - 2²⁵ = 1088364829 is a prime.

It is a super-2 number, since 2×1121919261² = 2517405656405572242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121919241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561241 + ... + 2561678.

It is an arithmetic number, because the mean of its divisors is an integer number (189548040).

Almost surely, 2^1121919261 is an apocalyptic number.

It is an amenable number.

1121919261 is a deficient number, since it is larger than the sum of its proper divisors (394465059).

1121919261 is an equidigital number, since it uses as much as digits as its factorization.

1121919261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122995.

The product of its digits is 1944, while the sum is 33.

The square root of 1121919261 is about 33495.0632332587. The cubic root of 1121919261 is about 1039.0916813412.

The spelling of 1121919261 in words is "one billion, one hundred twenty-one million, nine hundred nineteen thousand, two hundred sixty-one".