1213223433 has 8 divisors (see below), whose sum is σ = 1617852000. Its totient is φ = 808705248.

The previous prime is 1213223419. The next prime is 1213223447. The reversal of 1213223433 is 3343223121.

It is an interprime number because it is at equal distance from previous prime (1213223419) and next prime (1213223447).

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

It is not a de Polignac number, because 1213223433 - 2⁹ = 1213222921 is a prime.

It is a super-2 number, since 2×1213223433² = 2943822196760610978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213223233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2853 + ... + 49341.

It is an arithmetic number, because the mean of its divisors is an integer number (202231500).

Almost surely, 2^1213223433 is an apocalyptic number.

It is an amenable number.

1213223433 is a deficient number, since it is larger than the sum of its proper divisors (404628567).

1213223433 is an equidigital number, since it uses as much as digits as its factorization.

1213223433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55191.

The product of its digits is 2592, while the sum is 24.

The square root of 1213223433 is about 34831.3570364406. The cubic root of 1213223433 is about 1066.5476504688.

Adding to 1213223433 its reverse (3343223121), we get a palindrome (4556446554).

The spelling of 1213223433 in words is "one billion, two hundred thirteen million, two hundred twenty-three thousand, four hundred thirty-three".