31302010212373 has 2 divisors, whose sum is σ = 31302010212374. Its totient is φ = 31302010212372.

The previous prime is 31302010212313. The next prime is 31302010212377. The reversal of 31302010212373 is 37321201020313.

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., 31245338601009 + 56671611364 = 5589753^2 + 238058^2 .

It is a cyclic number.

It is not a de Polignac number, because 31302010212373 - 2⁹ = 31302010211861 is a prime.

It is a super-2 number, since 2×31302010212373² (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 (31302010212377) 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, 15651005106186 + 15651005106187.

It is an arithmetic number, because the mean of its divisors is an integer number (15651005106187).

Almost surely, 2^{31302010212373} is an apocalyptic number.

It is an amenable number.

31302010212373 is a deficient number, since it is larger than the sum of its proper divisors (1).

31302010212373 is an equidigital number, since it uses as much as digits as its factorization.

31302010212373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

Adding to 31302010212373 its reverse (37321201020313), we get a palindrome (68623211232686).

The spelling of 31302010212373 in words is "thirty-one trillion, three hundred two billion, ten million, two hundred twelve thousand, three hundred seventy-three".