1233220313 has 16 divisors (see below), whose sum is σ = 1339900800. Its totient is φ = 1128276864.

The previous prime is 1233220297. The next prime is 1233220319. The reversal of 1233220313 is 3130223321.

It is not a de Polignac number, because 1233220313 - 2⁴ = 1233220297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233220319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808970 + ... + 810492.

It is an arithmetic number, because the mean of its divisors is an integer number (83743800).

Almost surely, 2^1233220313 is an apocalyptic number.

1233220313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1233220313 is a deficient number, since it is larger than the sum of its proper divisors (106680487).

1233220313 is a wasteful number, since it uses less digits than its factorization.

1233220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048.

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

The square root of 1233220313 is about 35117.2366936808. The cubic root of 1233220313 is about 1072.3755161492.

Adding to 1233220313 its reverse (3130223321), we get a palindrome (4363443634).

The spelling of 1233220313 in words is "one billion, two hundred thirty-three million, two hundred twenty thousand, three hundred thirteen".