31430230201 has 2 divisors, whose sum is σ = 31430230202. Its totient is φ = 31430230200.

The previous prime is 31430230199. The next prime is 31430230219. The reversal of 31430230201 is 10203203413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31320504576 + 109725625 = 176976^2 + 10475^2 .

It is a cyclic number.

It is not a de Polignac number, because 31430230201 - 2¹ = 31430230199 is a prime.

Together with 31430230199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31430230801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15715115100 + 15715115101.

It is an arithmetic number, because the mean of its divisors is an integer number (15715115101).

Almost surely, 2^31430230201 is an apocalyptic number.

It is an amenable number.

31430230201 is a deficient number, since it is larger than the sum of its proper divisors (1).

31430230201 is an equidigital number, since it uses as much as digits as its factorization.

31430230201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31430230201 its reverse (10203203413), we get a palindrome (41633433614).

The spelling of 31430230201 in words is "thirty-one billion, four hundred thirty million, two hundred thirty thousand, two hundred one".