11401131112 has 64 divisors (see below), whose sum is σ = 25372638720. Its totient is φ = 4701267648.

The previous prime is 11401131109. The next prime is 11401131139. The reversal of 11401131112 is 21113110411.

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, 126003 + ... + 196669.

It is an arithmetic number, because the mean of its divisors is an integer number (396447480).

Almost surely, 2^11401131112 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 11401131112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12686319360).

11401131112 is an abundant number, since it is smaller than the sum of its proper divisors (13971507608).

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

11401131112 is a wasteful number, since it uses less digits than its factorization.

11401131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70790 (or 70786 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11401131112 its reverse (21113110411), we get a palindrome (32514241523).

The spelling of 11401131112 in words is "eleven billion, four hundred one million, one hundred thirty-one thousand, one hundred twelve".