11331434220 has 48 divisors (see below), whose sum is σ = 31796620800. Its totient is φ = 3015182016.

The previous prime is 11331434183. The next prime is 11331434251. The reversal of 11331434220 is 2243413311.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176170 + ... + 231729.

It is an arithmetic number, because the mean of its divisors is an integer number (662429600).

Almost surely, 2^11331434220 is an apocalyptic number.

11331434220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331434220 is an abundant number, since it is smaller than the sum of its proper divisors (20465186580).

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

11331434220 is a wasteful number, since it uses less digits than its factorization.

11331434220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408374 (or 408372 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11331434220 its reverse (2243413311), we get a palindrome (13574847531).

The spelling of 11331434220 in words is "eleven billion, three hundred thirty-one million, four hundred thirty-four thousand, two hundred twenty".