31980083 has 2 divisors, whose sum is σ = 31980084. Its totient is φ = 31980082.

The previous prime is 31980061. The next prime is 31980101. The reversal of 31980083 is 38008913.

It is a strong prime.

It is an emirp because it is prime and its reverse (38008913) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31980083 - 2¹⁴ = 31963699 is a prime.

It is equal to p_1972661 and since 31980083 and 1972661 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (31980283) 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, 15990041 + 15990042.

It is an arithmetic number, because the mean of its divisors is an integer number (15990042).

Almost surely, 2^31980083 is an apocalyptic number.

31980083 is a deficient number, since it is larger than the sum of its proper divisors (1).

31980083 is an equidigital number, since it uses as much as digits as its factorization.

31980083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 31980083 is about 5655.0935447612. The cubic root of 31980083 is about 317.4143295011.

Adding to 31980083 its reverse (38008913), we get a palindrome (69988996).

The spelling of 31980083 in words is "thirty-one million, nine hundred eighty thousand, eighty-three".