20011000111000 has 32 divisors (see below), whose sum is σ = 46825740262080. Its totient is φ = 8004400044000.

The previous prime is 20011000110947. The next prime is 20011000111009. The reversal of 20011000111000 is 11100011002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011000111009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10005499056 + ... + 10005501055.

It is an arithmetic number, because the mean of its divisors is an integer number (1463304383190).

Almost surely, 2^{20011000111000} is an apocalyptic number.

20011000111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011000111000 is an abundant number, since it is smaller than the sum of its proper divisors (26814740151080).

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

20011000111000 is a wasteful number, since it uses less digits than its factorization.

20011000111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20011000132 (or 20011000118 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 20011000111000 its reverse (11100011002), we get a palindrome (20022100122002).

The spelling of 20011000111000 in words is "twenty trillion, eleven billion, one hundred eleven thousand".