10010020000 has 60 divisors (see below), whose sum is σ = 24626199906. Its totient is φ = 4004000000.

The previous prime is 10010019991. The next prime is 10010020043. The reversal of 10010020000 is 2001001.

It can be written as a sum of positive squares in 5 ways, for example, as 367565584 + 9642454416 = 19172^2 + 98196^2 .

It is a Harshad number since it is a multiple of its sum of digits (4).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 230251 + ... + 270250.

Almost surely, 2^10010020000 is an apocalyptic number.

10010020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010020000 is an abundant number, since it is smaller than the sum of its proper divisors (14616179906).

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

10010020000 is an frugal number, since it uses more digits than its factorization.

10010020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500531 (or 500508 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 10010020000 its reverse (2001001), we get a palindrome (10012021001).

The spelling of 10010020000 in words is "ten billion, ten million, twenty thousand".