1233120673 has 4 divisors (see below), whose sum is σ = 1253335828. Its totient is φ = 1212905520.

The previous prime is 1233120661. The next prime is 1233120683. The reversal of 1233120673 is 3760213321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 214681104 + 1018439569 = 14652^2 + 31913^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233120673 - 2⁵ = 1233120641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233120613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10107486 + ... + 10107607.

It is an arithmetic number, because the mean of its divisors is an integer number (313333957).

Almost surely, 2^1233120673 is an apocalyptic number.

It is an amenable number.

1233120673 is a deficient number, since it is larger than the sum of its proper divisors (20215155).

1233120673 is an equidigital number, since it uses as much as digits as its factorization.

1233120673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20215154.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 1233120673 is about 35115.8179884792. The cubic root of 1233120673 is about 1072.3466339419.

Adding to 1233120673 its reverse (3760213321), we get a palindrome (4993333994).

The spelling of 1233120673 in words is "one billion, two hundred thirty-three million, one hundred twenty thousand, six hundred seventy-three".