1223223013 has 8 divisors (see below), whose sum is σ = 1230327000. Its totient is φ = 1216140288.

The previous prime is 1223223011. The next prime is 1223223061. The reversal of 1223223013 is 3103223221.

It can be written as a sum of positive squares in 4 ways, for example, as 114532804 + 1108690209 = 10702^2 + 33297^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1223223013 - 2¹ = 1223223011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223223011) 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, 118233 + ... + 128161.

It is an arithmetic number, because the mean of its divisors is an integer number (153790875).

Almost surely, 2^1223223013 is an apocalyptic number.

It is an amenable number.

1223223013 is a deficient number, since it is larger than the sum of its proper divisors (7103987).

1223223013 is an equidigital number, since it uses as much as digits as its factorization.

1223223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10631.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1223223013 is about 34974.6052586730. The cubic root of 1223223013 is about 1069.4698549994.

Adding to 1223223013 its reverse (3103223221), we get a palindrome (4326446234).

It can be divided in two parts, 12232 and 23013, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 1223223013 in words is "one billion, two hundred twenty-three million, two hundred twenty-three thousand, thirteen".