1020011328 has 84 divisors (see below), whose sum is σ = 3341359840. Its totient is φ = 291430656.

The previous prime is 1020011327. The next prime is 1020011351. The reversal of 1020011328 is 8231100201.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1020011328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020011327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122458 + ... + 130521.

Almost surely, 2^1020011328 is an apocalyptic number.

1020011328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1020011328 is an abundant number, since it is smaller than the sum of its proper divisors (2321348512).

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

1020011328 is a wasteful number, since it uses less digits than its factorization.

1020011328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253004 (or 252991 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1020011328 is about 31937.6161915695. The cubic root of 1020011328 is about 1006.6264360241.

Adding to 1020011328 its reverse (8231100201), we get a palindrome (9251111529).

It can be divided in two parts, 10200 and 11328, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 1020011328 in words is "one billion, twenty million, eleven thousand, three hundred twenty-eight".