1223133020 has 24 divisors (see below), whose sum is σ = 2574448800. Its totient is φ = 488135232.

The previous prime is 1223133011. The next prime is 1223133049. The reversal of 1223133020 is 203313221.

It is a super-2 number, since 2×1223133020² = 2992108769228640800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1223133020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60875 + ... + 78434.

It is an arithmetic number, because the mean of its divisors is an integer number (107268700).

Almost surely, 2^1223133020 is an apocalyptic number.

1223133020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223133020 is an abundant number, since it is smaller than the sum of its proper divisors (1351315780).

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

1223133020 is a wasteful number, since it uses less digits than its factorization.

1223133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139757 (or 139755 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1223133020 is about 34973.3186872507. The cubic root of 1223133020 is about 1069.4436272497.

Adding to 1223133020 its reverse (203313221), we get a palindrome (1426446241).

The spelling of 1223133020 in words is "one billion, two hundred twenty-three million, one hundred thirty-three thousand, twenty".