1233120671 has 4 divisors (see below), whose sum is σ = 1233913200. Its totient is φ = 1232328144.

The previous prime is 1233120661. The next prime is 1233120683. The reversal of 1233120671 is 1760213321.

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

It is a cyclic number.

It is not a de Polignac number, because 1233120671 - 2³⁰ = 159378847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1233120671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233120611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393926 + ... + 397043.

It is an arithmetic number, because the mean of its divisors is an integer number (308478300).

Almost surely, 2^1233120671 is an apocalyptic number.

1233120671 is a deficient number, since it is larger than the sum of its proper divisors (792529).

1233120671 is an equidigital number, since it uses as much as digits as its factorization.

1233120671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792528.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1233120671 is about 35115.8179600020. The cubic root of 1233120671 is about 1072.3466333621.

Adding to 1233120671 its reverse (1760213321), we get a palindrome (2993333992).

The spelling of 1233120671 in words is "one billion, two hundred thirty-three million, one hundred twenty thousand, six hundred seventy-one".