1213033223 has 2 divisors, whose sum is σ = 1213033224. Its totient is φ = 1213033222.

The previous prime is 1213033219. The next prime is 1213033277. The reversal of 1213033223 is 3223303121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213033223 - 2² = 1213033219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213033195 and 1213033204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213063223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606516611 + 606516612.

It is an arithmetic number, because the mean of its divisors is an integer number (606516612).

Almost surely, 2^1213033223 is an apocalyptic number.

1213033223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213033223 is an equidigital number, since it uses as much as digits as its factorization.

1213033223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1213033223 is about 34828.6264874169. The cubic root of 1213033223 is about 1066.4919095322.

Adding to 1213033223 its reverse (3223303121), we get a palindrome (4436336344).

The spelling of 1213033223 in words is "one billion, two hundred thirteen million, thirty-three thousand, two hundred twenty-three".