11402111112 has 128 divisors (see below), whose sum is σ = 33074438400. Its totient is φ = 3208347648.

The previous prime is 11402111101. The next prime is 11402111117. The reversal of 11402111112 is 21111120411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11402111091 and 11402111100.

It is not an unprimeable number, because it can be changed into a prime (11402111117) 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, 4140328 + ... + 4143080.

It is an arithmetic number, because the mean of its divisors is an integer number (258394050).

Almost surely, 2^11402111112 is an apocalyptic number.

11402111112 is a gapful number since it is divisible by the number (12) 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 11402111112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16537219200).

11402111112 is an abundant number, since it is smaller than the sum of its proper divisors (21672327288).

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

11402111112 is a wasteful number, since it uses less digits than its factorization.

11402111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135 (or 3131 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11402111112 its reverse (21111120411), we get a palindrome (32513231523).

The spelling of 11402111112 in words is "eleven billion, four hundred two million, one hundred eleven thousand, one hundred twelve".