31414343321 has 2 divisors, whose sum is σ = 31414343322. Its totient is φ = 31414343320.

The previous prime is 31414343243. The next prime is 31414343341. The reversal of 31414343321 is 12334341413.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31300686400 + 113656921 = 176920^2 + 10661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31414343321 is a prime.

It is not a weakly prime, because it can be changed into another prime (31414343341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15707171660 + 15707171661.

It is an arithmetic number, because the mean of its divisors is an integer number (15707171661).

Almost surely, 2^31414343321 is an apocalyptic number.

It is an amenable number.

31414343321 is a deficient number, since it is larger than the sum of its proper divisors (1).

31414343321 is an equidigital number, since it uses as much as digits as its factorization.

31414343321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 29.

Adding to 31414343321 its reverse (12334341413), we get a palindrome (43748684734).

The spelling of 31414343321 in words is "thirty-one billion, four hundred fourteen million, three hundred forty-three thousand, three hundred twenty-one".