31343321112373 has 2 divisors, whose sum is σ = 31343321112374. Its totient is φ = 31343321112372.

The previous prime is 31343321112241. The next prime is 31343321112401. The reversal of 31343321112373 is 37321112334313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29838928100004 + 1504393012369 = 5462502^2 + 1226537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31343321112373 is a prime.

It is a super-2 number, since 2×31343321112373² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31343321112473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671660556186 + 15671660556187.

It is an arithmetic number, because the mean of its divisors is an integer number (15671660556187).

Almost surely, 2^{31343321112373} is an apocalyptic number.

It is an amenable number.

31343321112373 is a deficient number, since it is larger than the sum of its proper divisors (1).

31343321112373 is an equidigital number, since it uses as much as digits as its factorization.

31343321112373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 37.

Adding to 31343321112373 its reverse (37321112334313), we get a palindrome (68664433446686).

The spelling of 31343321112373 in words is "thirty-one trillion, three hundred forty-three billion, three hundred twenty-one million, one hundred twelve thousand, three hundred seventy-three".