1131223030 has 32 divisors (see below), whose sum is σ = 2428268544. Its totient is φ = 370984416.

The previous prime is 1131223013. The next prime is 1131223033. The reversal of 1131223030 is 303221311.

It is a junction number, because it is equal to n+sod(n) for n = 1131222995 and 1131223013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131223033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349702 + ... + 352921.

It is an arithmetic number, because the mean of its divisors is an integer number (75883392).

Almost surely, 2^1131223030 is an apocalyptic number.

1131223030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131223030 is an abundant number, since it is smaller than the sum of its proper divisors (1297045514).

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

1131223030 is a wasteful number, since it uses less digits than its factorization.

1131223030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702660.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1131223030 is about 33633.6591824321. The cubic root of 1131223030 is about 1041.9560788440.

Adding to 1131223030 its reverse (303221311), we get a palindrome (1434444341).

The spelling of 1131223030 in words is "one billion, one hundred thirty-one million, two hundred twenty-three thousand, thirty".