1131303222 has 48 divisors (see below), whose sum is σ = 2829089952. Its totient is φ = 320025600.

The previous prime is 1131303209. The next prime is 1131303247. The reversal of 1131303222 is 2223031311.

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 = 1131303195 and 1131303204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31723 + ... + 57174.

It is an arithmetic number, because the mean of its divisors is an integer number (58939374).

Almost surely, 2^1131303222 is an apocalyptic number.

1131303222 is an abundant number, since it is smaller than the sum of its proper divisors (1697786730).

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

1131303222 is a wasteful number, since it uses less digits than its factorization.

1131303222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89013 (or 89010 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1131303222 is about 33634.8513003997. The cubic root of 1131303222 is about 1041.9806995613.

Adding to 1131303222 its reverse (2223031311), we get a palindrome (3354334533).

The spelling of 1131303222 in words is "one billion, one hundred thirty-one million, three hundred three thousand, two hundred twenty-two".