325220016431 has 2 divisors, whose sum is σ = 325220016432. Its totient is φ = 325220016430.

The previous prime is 325220016413. The next prime is 325220016481. The reversal of 325220016431 is 134610022523.

It is a happy number.

Together with previous prime (325220016413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325220016431 is a prime.

It is a super-2 number, since 2×325220016431² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 325220016394 and 325220016403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325220016481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162610008215 + 162610008216.

It is an arithmetic number, because the mean of its divisors is an integer number (162610008216).

Almost surely, 2^325220016431 is an apocalyptic number.

325220016431 is a deficient number, since it is larger than the sum of its proper divisors (1).

325220016431 is an equidigital number, since it uses as much as digits as its factorization.

325220016431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 325220016431 its reverse (134610022523), we get a palindrome (459830038954).

The spelling of 325220016431 in words is "three hundred twenty-five billion, two hundred twenty million, sixteen thousand, four hundred thirty-one".