11042031220 has 24 divisors (see below), whose sum is σ = 25296290208. Its totient is φ = 4015284000.

The previous prime is 11042031211. The next prime is 11042031223. The reversal of 11042031220 is 2213024011.

It is a junction number, because it is equal to n+sod(n) for n = 11042031194 and 11042031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11042031223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25095306 + ... + 25095745.

It is an arithmetic number, because the mean of its divisors is an integer number (1054012092).

Almost surely, 2^11042031220 is an apocalyptic number.

11042031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11042031220 is an abundant number, since it is smaller than the sum of its proper divisors (14254258988).

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

11042031220 is a wasteful number, since it uses less digits than its factorization.

11042031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50191071 (or 50191069 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11042031220 its reverse (2213024011), we get a palindrome (13255055231).

The spelling of 11042031220 in words is "eleven billion, forty-two million, thirty-one thousand, two hundred twenty".