31423326373 has 2 divisors, whose sum is σ = 31423326374. Its totient is φ = 31423326372.

The previous prime is 31423326289. The next prime is 31423326401. The reversal of 31423326373 is 37362332413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17187734404 + 14235591969 = 131102^2 + 119313^2 .

It is a cyclic number.

It is not a de Polignac number, because 31423326373 - 2¹³ = 31423318181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31423326773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711663186 + 15711663187.

It is an arithmetic number, because the mean of its divisors is an integer number (15711663187).

Almost surely, 2^31423326373 is an apocalyptic number.

It is an amenable number.

31423326373 is a deficient number, since it is larger than the sum of its proper divisors (1).

31423326373 is an equidigital number, since it uses as much as digits as its factorization.

31423326373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 37.

Adding to 31423326373 its reverse (37362332413), we get a palindrome (68785658786).

The spelling of 31423326373 in words is "thirty-one billion, four hundred twenty-three million, three hundred twenty-six thousand, three hundred seventy-three".