31344367471 has 2 divisors, whose sum is σ = 31344367472. Its totient is φ = 31344367470.

The previous prime is 31344367463. The next prime is 31344367477. The reversal of 31344367471 is 17476344313.

It is a strong prime.

It is an emirp because it is prime and its reverse (17476344313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31344367471 - 2³ = 31344367463 is a prime.

It is a super-3 number, since 3×31344367471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31344367477) 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, 15672183735 + 15672183736.

It is an arithmetic number, because the mean of its divisors is an integer number (15672183736).

Almost surely, 2^31344367471 is an apocalyptic number.

31344367471 is a deficient number, since it is larger than the sum of its proper divisors (1).

31344367471 is an equidigital number, since it uses as much as digits as its factorization.

31344367471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 43.

The spelling of 31344367471 in words is "thirty-one billion, three hundred forty-four million, three hundred sixty-seven thousand, four hundred seventy-one".