1121385490 has 8 divisors (see below), whose sum is σ = 2018493900. Its totient is φ = 448554192.

The previous prime is 1121385479. The next prime is 1121385521. The reversal of 1121385490 is 945831211.

It can be written as a sum of positive squares in 2 ways, for example, as 1094749569 + 26635921 = 33087^2 + 5161^2 .

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

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, 56069265 + ... + 56069284.

Almost surely, 2^1121385490 is an apocalyptic number.

1121385490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121385490 is a deficient number, since it is larger than the sum of its proper divisors (897108410).

1121385490 is a wasteful number, since it uses less digits than its factorization.

1121385490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112138556.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1121385490 is about 33487.0943797756. The cubic root of 1121385490 is about 1038.9268670485.

The spelling of 1121385490 in words is "one billion, one hundred twenty-one million, three hundred eighty-five thousand, four hundred ninety".