20101011000012 has 72 divisors (see below), whose sum is σ = 51722225034480. Its totient is φ = 6580494184320.

The previous prime is 20101010999989. The next prime is 20101011000041. The reversal of 20101011000012 is 21000011010102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20101010999958 and 20101011000003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5497803 + ... + 8392130.

It is an arithmetic number, because the mean of its divisors is an integer number (718364236590).

Almost surely, 2^{20101011000012} is an apocalyptic number.

It is an amenable number.

20101011000012 is an abundant number, since it is smaller than the sum of its proper divisors (31621214034468).

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

20101011000012 is a wasteful number, since it uses less digits than its factorization.

20101011000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13890663 (or 13890658 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20101011000012 its reverse (21000011010102), we get a palindrome (41101022010114).

The spelling of 20101011000012 in words is "twenty trillion, one hundred one billion, eleven million, twelve", and thus it is an aban number.