11031302120 has 16 divisors (see below), whose sum is σ = 24820429860. Its totient is φ = 4412520832.

The previous prime is 11031302119. The next prime is 11031302123. The reversal of 11031302120 is 2120313011.

It can be written as a sum of positive squares in 2 ways, for example, as 8877785284 + 2153516836 = 94222^2 + 46406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11031302095 and 11031302104.

It is not an unprimeable number, because it can be changed into a prime (11031302123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137891237 + ... + 137891316.

Almost surely, 2^11031302120 is an apocalyptic number.

11031302120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11031302120 is an abundant number, since it is smaller than the sum of its proper divisors (13789127740).

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

11031302120 is a wasteful number, since it uses less digits than its factorization.

11031302120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275782564 (or 275782560 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11031302120 its reverse (2120313011), we get a palindrome (13151615131).

The spelling of 11031302120 in words is "eleven billion, thirty-one million, three hundred two thousand, one hundred twenty".