1021134384 has 80 divisors (see below), whose sum is σ = 2958560640. Its totient is φ = 337181760.

The previous prime is 1021134377. The next prime is 1021134391. The reversal of 1021134384 is 4834311201.

1021134384 is a `hidden beast` number, since 10 + 211 + 3 + 438 + 4 = 666.

1021134384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1021134377) and next prime (1021134391).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 35179 + ... + 57269.

It is an arithmetic number, because the mean of its divisors is an integer number (36982008).

Almost surely, 2^1021134384 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 1021134384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1479280320).

1021134384 is an abundant number, since it is smaller than the sum of its proper divisors (1937426256).

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

1021134384 is a wasteful number, since it uses less digits than its factorization.

1021134384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22215 (or 22203 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1021134384 is about 31955.1933807323. The cubic root of 1021134384 is about 1006.9957401615.

Adding to 1021134384 its reverse (4834311201), we get a palindrome (5855445585).

The spelling of 1021134384 in words is "one billion, twenty-one million, one hundred thirty-four thousand, three hundred eighty-four".