11101331124 has 96 divisors (see below), whose sum is σ = 31094192640. Its totient is φ = 3404882304.

The previous prime is 11101331053. The next prime is 11101331147. The reversal of 11101331124 is 42113310111.

It is a happy number.

It is a super-2 number, since 2×11101331124² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11101331097 and 11101331106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432597 + ... + 457539.

It is an arithmetic number, because the mean of its divisors is an integer number (323897840).

Almost surely, 2^11101331124 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 11101331124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15547096320).

11101331124 is an abundant number, since it is smaller than the sum of its proper divisors (19992861516).

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

11101331124 is a wasteful number, since it uses less digits than its factorization.

11101331124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25286 (or 25278 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11101331124 its reverse (42113310111), we get a palindrome (53214641235).

It can be divided in two parts, 11101 and 331124, that added together give a square (342225 = 585²).

The spelling of 11101331124 in words is "eleven billion, one hundred one million, three hundred thirty-one thousand, one hundred twenty-four".