1320311233 has 8 divisors (see below), whose sum is σ = 1361477376. Its totient is φ = 1279572000.

The previous prime is 1320311227. The next prime is 1320311281. The reversal of 1320311233 is 3321130231.

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 1320311233 - 2¹³ = 1320303041 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 1320311233.

It is not an unprimeable number, because it can be changed into a prime (1320311203) 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, 100441 + ... + 112822.

It is an arithmetic number, because the mean of its divisors is an integer number (170184672).

Almost surely, 2^1320311233 is an apocalyptic number.

It is an amenable number.

1320311233 is a deficient number, since it is larger than the sum of its proper divisors (41166143).

1320311233 is a wasteful number, since it uses less digits than its factorization.

1320311233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213455.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1320311233 is about 36336.0871999174. The cubic root of 1320311233 is about 1097.0475184992.

Adding to 1320311233 its reverse (3321130231), we get a palindrome (4641441464).

The spelling of 1320311233 in words is "one billion, three hundred twenty million, three hundred eleven thousand, two hundred thirty-three".