31430330401 has 2 divisors, whose sum is σ = 31430330402. Its totient is φ = 31430330400.

The previous prime is 31430330381. The next prime is 31430330443. The reversal of 31430330401 is 10403303413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26224563600 + 5205766801 = 161940^2 + 72151^2 .

It is an emirp because it is prime and its reverse (10403303413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31430330401 - 2¹⁷ = 31430199329 is a prime.

It is not a weakly prime, because it can be changed into another prime (31430339401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15715165200 + 15715165201.

It is an arithmetic number, because the mean of its divisors is an integer number (15715165201).

Almost surely, 2^31430330401 is an apocalyptic number.

It is an amenable number.

31430330401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31430330401 is an equidigital number, since it uses as much as digits as its factorization.

31430330401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31430330401 its reverse (10403303413), we get a palindrome (41833633814).

The spelling of 31430330401 in words is "thirty-one billion, four hundred thirty million, three hundred thirty thousand, four hundred one".