1325131233 has 4 divisors (see below), whose sum is σ = 1766841648. Its totient is φ = 883420820.

The previous prime is 1325131219. The next prime is 1325131261. The reversal of 1325131233 is 3321315231.

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 a cyclic number.

It is not a de Polignac number, because 1325131233 - 2⁴ = 1325131217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325131033) 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, 220855203 + ... + 220855208.

It is an arithmetic number, because the mean of its divisors is an integer number (441710412).

Almost surely, 2^1325131233 is an apocalyptic number.

It is an amenable number.

1325131233 is a deficient number, since it is larger than the sum of its proper divisors (441710415).

1325131233 is an equidigital number, since it uses as much as digits as its factorization.

1325131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441710414.

The product of its digits is 1620, while the sum is 24.

The square root of 1325131233 is about 36402.3520256590. The cubic root of 1325131233 is about 1098.3808777153.

Adding to 1325131233 its reverse (3321315231), we get a palindrome (4646446464).

The spelling of 1325131233 in words is "one billion, three hundred twenty-five million, one hundred thirty-one thousand, two hundred thirty-three".