10611111112 has 64 divisors (see below), whose sum is σ = 23385600000. Its totient is φ = 4511662848.

The previous prime is 10611111103. The next prime is 10611111143. The reversal of 10611111112 is 21111111601.

It is a super-2 number, since 2×10611111112² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333264 + ... + 363712.

It is an arithmetic number, because the mean of its divisors is an integer number (365400000).

Almost surely, 2^10611111112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10611111112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11692800000).

10611111112 is an abundant number, since it is smaller than the sum of its proper divisors (12774488888).

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

10611111112 is a wasteful number, since it uses less digits than its factorization.

10611111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30603 (or 30585 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 10611111112 its reverse (21111111601), we get a palindrome (31722222713).

The spelling of 10611111112 in words is "ten billion, six hundred eleven million, one hundred eleven thousand, one hundred twelve".