10111111111000 has 128 divisors (see below), whose sum is σ = 23951114104320. Its totient is φ = 3994872000000.

The previous prime is 10111111110941. The next prime is 10111111111001. The reversal of 10111111111000 is 11111111101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111111111001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42402105 + ... + 42639895.

It is an arithmetic number, because the mean of its divisors is an integer number (187118078940).

Almost surely, 2^{10111111111000} is an apocalyptic number.

10111111111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10111111111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11975557052160).

10111111111000 is an abundant number, since it is smaller than the sum of its proper divisors (13840002993320).

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

10111111111000 is a wasteful number, since it uses less digits than its factorization.

10111111111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238334 (or 238320 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 10111111111000 its reverse (11111111101), we get a palindrome (10122222222101).

It can be divided in two parts, 10111 and 111111000, that added together give a palindrome (111121111).

The spelling of 10111111111000 in words is "ten trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven thousand".