1011020304 has 80 divisors (see below), whose sum is σ = 3002343552. Its totient is φ = 287176704.

The previous prime is 1011020299. The next prime is 1011020321. The reversal of 1011020304 is 4030201101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1011020304.

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, 49432 + ... + 66824.

Almost surely, 2^1011020304 is an apocalyptic number.

1011020304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011020304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501171776).

1011020304 is an abundant number, since it is smaller than the sum of its proper divisors (1991323248).

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

1011020304 is a wasteful number, since it uses less digits than its factorization.

1011020304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17584 (or 17578 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1011020304 is about 31796.5454727396. The cubic root of 1011020304 is about 1003.6600225586.

Adding to 1011020304 its reverse (4030201101), we get a palindrome (5041221405).

The spelling of 1011020304 in words is "one billion, eleven million, twenty thousand, three hundred four".