325001631421 has 2 divisors, whose sum is σ = 325001631422. Its totient is φ = 325001631420.

The previous prime is 325001631389. The next prime is 325001631499. The reversal of 325001631421 is 124136100523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211374660025 + 113626971396 = 459755^2 + 337086^2 .

It is an emirp because it is prime and its reverse (124136100523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325001631421 - 2⁵ = 325001631389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 325001631421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325001631821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162500815710 + 162500815711.

It is an arithmetic number, because the mean of its divisors is an integer number (162500815711).

Almost surely, 2^325001631421 is an apocalyptic number.

It is an amenable number.

325001631421 is a deficient number, since it is larger than the sum of its proper divisors (1).

325001631421 is an equidigital number, since it uses as much as digits as its factorization.

325001631421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 325001631421 its reverse (124136100523), we get a palindrome (449137731944).

The spelling of 325001631421 in words is "three hundred twenty-five billion, one million, six hundred thirty-one thousand, four hundred twenty-one".