11231270120 has 128 divisors (see below), whose sum is σ = 30539980800. Its totient is φ = 3631309056.

The previous prime is 11231270111. The next prime is 11231270213. The reversal of 11231270120 is 2107213211.

It is a super-2 number, since 2×11231270120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11231270092 and 11231270101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1181627 + ... + 1191093.

It is an arithmetic number, because the mean of its divisors is an integer number (238593600).

Almost surely, 2^11231270120 is an apocalyptic number.

11231270120 is a gapful number since it is divisible by the number (10) 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 11231270120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15269990400).

11231270120 is an abundant number, since it is smaller than the sum of its proper divisors (19308710680).

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

11231270120 is a wasteful number, since it uses less digits than its factorization.

11231270120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9727 (or 9723 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 11231270120 its reverse (2107213211), we get a palindrome (13338483331).

The spelling of 11231270120 in words is "eleven billion, two hundred thirty-one million, two hundred seventy thousand, one hundred twenty".