10111000101111 has 144 divisors (see below), whose sum is σ = 18800364492000. Its totient is φ = 5186431627776.

The previous prime is 10111000101107. The next prime is 10111000101119. The reversal of 10111000101111 is 11110100011101.

It is not a de Polignac number, because 10111000101111 - 2² = 10111000101107 is a prime.

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 = 10111000101093 and 10111000101102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111000101119) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 445230625 + ... + 445253333.

It is an arithmetic number, because the mean of its divisors is an integer number (130558086750).

Almost surely, 2^{10111000101111} is an apocalyptic number.

10111000101111 is a deficient number, since it is larger than the sum of its proper divisors (8689364390889).

10111000101111 is a wasteful number, since it uses less digits than its factorization.

10111000101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24878 (or 24868 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 10111000101111 its reverse (11110100011101), we get a palindrome (21221100112212).

The spelling of 10111000101111 in words is "ten trillion, one hundred eleven billion, one hundred one thousand, one hundred eleven".