1321411233 has 4 divisors (see below), whose sum is σ = 1761881648. Its totient is φ = 880940820.

The previous prime is 1321411123. The next prime is 1321411237. The reversal of 1321411233 is 3321141231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1321411233 - 2⁹ = 1321410721 is a prime.

It is a super-2 number, since 2×1321411233² = 3492255293397160578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321411237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220235203 + ... + 220235208.

It is an arithmetic number, because the mean of its divisors is an integer number (440470412).

Almost surely, 2^1321411233 is an apocalyptic number.

It is an amenable number.

1321411233 is a deficient number, since it is larger than the sum of its proper divisors (440470415).

1321411233 is an equidigital number, since it uses as much as digits as its factorization.

1321411233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440470414.

The product of its digits is 432, while the sum is 21.

The square root of 1321411233 is about 36351.2205159607. The cubic root of 1321411233 is about 1097.3520975169.

Adding to 1321411233 its reverse (3321141231), we get a palindrome (4642552464).

The spelling of 1321411233 in words is "one billion, three hundred twenty-one million, four hundred eleven thousand, two hundred thirty-three".