10011111000020 has 48 divisors (see below), whose sum is σ = 22641205820688. Its totient is φ = 3696297031680.

The previous prime is 10011111000017. The next prime is 10011111000049. The reversal of 10011111000020 is 2000011111001.

It is a happy number.

10011111000020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 296195000644 + 9714915999376 = 544238^2 + 3116876^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10011110999971 and 10011111000007.

It is a congruent number.

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, 8167730 + ... + 9313110.

It is an arithmetic number, because the mean of its divisors is an integer number (471691787931).

Almost surely, 2^{10011111000020} is an apocalyptic number.

10011111000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011111000020 is an abundant number, since it is smaller than the sum of its proper divisors (12630094820668).

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

10011111000020 is a wasteful number, since it uses less digits than its factorization.

10011111000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179020 (or 1179018 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10011111000020 its reverse (2000011111001), we get a palindrome (12011122111021).

The spelling of 10011111000020 in words is "ten trillion, eleven billion, one hundred eleven million, twenty", and thus it is an aban number.