1325303431 has 4 divisors (see below), whose sum is σ = 1326660912. Its totient is φ = 1323945952.

The previous prime is 1325303429. The next prime is 1325303467. The reversal of 1325303431 is 1343035231.

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 1325303431 - 2¹ = 1325303429 is a prime.

It is a super-2 number, since 2×1325303431² = 3512858368440743522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325303396 and 1325303405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325303471) 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, 677275 + ... + 679228.

It is an arithmetic number, because the mean of its divisors is an integer number (331665228).

Almost surely, 2^1325303431 is an apocalyptic number.

1325303431 is a deficient number, since it is larger than the sum of its proper divisors (1357481).

1325303431 is an equidigital number, since it uses as much as digits as its factorization.

1325303431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357480.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 1325303431 is about 36404.7171531383. The cubic root of 1325303431 is about 1098.4284530783.

Adding to 1325303431 its reverse (1343035231), we get a palindrome (2668338662).

The spelling of 1325303431 in words is "one billion, three hundred twenty-five million, three hundred three thousand, four hundred thirty-one".