1223131330 has 8 divisors (see below), whose sum is σ = 2201636412. Its totient is φ = 489252528.

The previous prime is 1223131321. The next prime is 1223131331. The reversal of 1223131330 is 331313221.

It can be written as a sum of positive squares in 2 ways, for example, as 1179716409 + 43414921 = 34347^2 + 6589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1223131298 and 1223131307.

It is not an unprimeable number, because it can be changed into a prime (1223131331) 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, 61156557 + ... + 61156576.

Almost surely, 2^1223131330 is an apocalyptic number.

1223131330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223131330 is a deficient number, since it is larger than the sum of its proper divisors (978505082).

1223131330 is a wasteful number, since it uses less digits than its factorization.

1223131330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122313140.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1223131330 is about 34973.2945259665. The cubic root of 1223131330 is about 1069.4431347003.

Adding to 1223131330 its reverse (331313221), we get a palindrome (1554444551).

The spelling of 1223131330 in words is "one billion, two hundred twenty-three million, one hundred thirty-one thousand, three hundred thirty".