1121273210 has 8 divisors (see below), whose sum is σ = 2018291796. Its totient is φ = 448509280.

The previous prime is 1121273189. The next prime is 1121273227. The reversal of 1121273210 is 123721211.

It can be written as a sum of positive squares in 2 ways, for example, as 1010413369 + 110859841 = 31787^2 + 10529^2 .

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

It is a super-2 number, since 2×1121273210² = 2514507222927408200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56063651 + ... + 56063670.

Almost surely, 2^1121273210 is an apocalyptic number.

1121273210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121273210 is a deficient number, since it is larger than the sum of its proper divisors (897018586).

1121273210 is a wasteful number, since it uses less digits than its factorization.

1121273210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112127328.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1121273210 is about 33485.4178710674. The cubic root of 1121273210 is about 1038.8921913124.

Adding to 1121273210 its reverse (123721211), we get a palindrome (1244994421).

The spelling of 1121273210 in words is "one billion, one hundred twenty-one million, two hundred seventy-three thousand, two hundred ten".