1325431013233 has 4 divisors (see below), whose sum is σ = 1328492055268. Its totient is φ = 1322369971200.

The previous prime is 1325431013219. The next prime is 1325431013251. The reversal of 1325431013233 is 3323101345231.

It is a happy number.

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 414030476304 + 911400536929 = 643452^2 + 954673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325431013233 - 2⁵ = 1325431013201 is a prime.

It is a super-2 number, since 2×1325431013233² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325431013195 and 1325431013204.

It is not an unprimeable number, because it can be changed into a prime (1325431013033) 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, 1530520368 + ... + 1530521233.

It is an arithmetic number, because the mean of its divisors is an integer number (332123013817).

Almost surely, 2^{1325431013233} is an apocalyptic number.

It is an amenable number.

1325431013233 is a deficient number, since it is larger than the sum of its proper divisors (3061042035).

1325431013233 is an equidigital number, since it uses as much as digits as its factorization.

1325431013233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061042034.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 1325431013233 its reverse (3323101345231), we get a palindrome (4648532358464).

The spelling of 1325431013233 in words is "one trillion, three hundred twenty-five billion, four hundred thirty-one million, thirteen thousand, two hundred thirty-three".