31425324401 has 2 divisors, whose sum is σ = 31425324402. Its totient is φ = 31425324400.

The previous prime is 31425324391. The next prime is 31425324451. The reversal of 31425324401 is 10442352413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20728800625 + 10696523776 = 143975^2 + 103424^2 .

It is an emirp because it is prime and its reverse (10442352413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31425324401 - 2¹⁸ = 31425062257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (31425324451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15712662200 + 15712662201.

It is an arithmetic number, because the mean of its divisors is an integer number (15712662201).

Almost surely, 2^31425324401 is an apocalyptic number.

It is an amenable number.

31425324401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31425324401 is an equidigital number, since it uses as much as digits as its factorization.

31425324401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 31425324401 its reverse (10442352413), we get a palindrome (41867676814).

The spelling of 31425324401 in words is "thirty-one billion, four hundred twenty-five million, three hundred twenty-four thousand, four hundred one".