31304333340373 has 2 divisors, whose sum is σ = 31304333340374. Its totient is φ = 31304333340372.

The previous prime is 31304333340367. The next prime is 31304333340389. The reversal of 31304333340373 is 37304333340313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19257721043044 + 12046612297329 = 4388362^2 + 3470823^2 .

It is a cyclic number.

It is not a de Polignac number, because 31304333340373 - 2²¹ = 31304331243221 is a prime.

It is a super-2 number, since 2×31304333340373² (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 (31304333340073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15652166670186 + 15652166670187.

It is an arithmetic number, because the mean of its divisors is an integer number (15652166670187).

Almost surely, 2^{31304333340373} is an apocalyptic number.

It is an amenable number.

31304333340373 is a deficient number, since it is larger than the sum of its proper divisors (1).

31304333340373 is an equidigital number, since it uses as much as digits as its factorization.

31304333340373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 40.

Adding to 31304333340373 its reverse (37304333340313), we get a palindrome (68608666680686).

The spelling of 31304333340373 in words is "thirty-one trillion, three hundred four billion, three hundred thirty-three million, three hundred forty thousand, three hundred seventy-three".