20100111010032 has 80 divisors (see below), whose sum is σ = 54012587035680. Its totient is φ = 6433260825600.

The previous prime is 20100111009973. The next prime is 20100111010039. The reversal of 20100111010032 is 23001011100102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100111010039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39636819 + ... + 40140722.

It is an arithmetic number, because the mean of its divisors is an integer number (675157337946).

Almost surely, 2^{20100111010032} is an apocalyptic number.

It is an amenable number.

20100111010032 is an abundant number, since it is smaller than the sum of its proper divisors (33912476025648).

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

20100111010032 is a wasteful number, since it uses less digits than its factorization.

20100111010032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79777762 (or 79777756 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20100111010032 its reverse (23001011100102), we get a palindrome (43101122110134).

The spelling of 20100111010032 in words is "twenty trillion, one hundred billion, one hundred eleven million, ten thousand, thirty-two".