10011020 has 24 divisors (see below), whose sum is σ = 21189168. Its totient is φ = 3972800.

The previous prime is 10011017. The next prime is 10011037. The reversal of 10011020 is 2011001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 10010995 and 10011013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710 + ... + 4530.

It is an arithmetic number, because the mean of its divisors is an integer number (882882).

Almost surely, 2^10011020 is an apocalyptic number.

10011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011020 is an abundant number, since it is smaller than the sum of its proper divisors (11178148).

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

10011020 is a wasteful number, since it uses less digits than its factorization.

10011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 10011020 is about 3164.0195953881. The cubic root of 10011020 is about 215.5225795180.

Adding to 10011020 its reverse (2011001), we get a palindrome (12022021).

The spelling of 10011020 in words is "ten million, eleven thousand, twenty".