31231483 has 2 divisors, whose sum is σ = 31231484. Its totient is φ = 31231482.

The previous prime is 31231471. The next prime is 31231507. The reversal of 31231483 is 38413213.

It is a weak prime.

It is an emirp because it is prime and its reverse (38413213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31231483 - 2¹⁷ = 31100411 is a prime.

It is not a weakly prime, because it can be changed into another prime (31231423) 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, 15615741 + 15615742.

It is an arithmetic number, because the mean of its divisors is an integer number (15615742).

Almost surely, 2^31231483 is an apocalyptic number.

31231483 is a deficient number, since it is larger than the sum of its proper divisors (1).

31231483 is an equidigital number, since it uses as much as digits as its factorization.

31231483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 31231483 is about 5588.5134875027. The cubic root of 31231483 is about 314.9180369601.

Adding to 31231483 its reverse (38413213), we get a palindrome (69644696).

The spelling of 31231483 in words is "thirty-one million, two hundred thirty-one thousand, four hundred eighty-three".