1121387304 has 64 divisors (see below), whose sum is σ = 2930688000. Its totient is φ = 357140160.

The previous prime is 1121387299. The next prime is 1121387327. The reversal of 1121387304 is 4037831211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49237 + ... + 68315.

It is an arithmetic number, because the mean of its divisors is an integer number (45792000).

Almost surely, 2^1121387304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121387304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465344000).

1121387304 is an abundant number, since it is smaller than the sum of its proper divisors (1809300696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121387304 is a wasteful number, since it uses less digits than its factorization.

1121387304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19198 (or 19194 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1121387304 is about 33487.1214648258. The cubic root of 1121387304 is about 1038.9274272521.

The spelling of 1121387304 in words is "one billion, one hundred twenty-one million, three hundred eighty-seven thousand, three hundred four".