31142330407 has 2 divisors, whose sum is σ = 31142330408. Its totient is φ = 31142330406.

The previous prime is 31142330389. The next prime is 31142330467. The reversal of 31142330407 is 70403324113.

It is a weak prime.

It is an emirp because it is prime and its reverse (70403324113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31142330407 - 2¹¹ = 31142328359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31142330467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15571165203 + 15571165204.

It is an arithmetic number, because the mean of its divisors is an integer number (15571165204).

Almost surely, 2^31142330407 is an apocalyptic number.

31142330407 is a deficient number, since it is larger than the sum of its proper divisors (1).

31142330407 is an equidigital number, since it uses as much as digits as its factorization.

31142330407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 28.

The spelling of 31142330407 in words is "thirty-one billion, one hundred forty-two million, three hundred thirty thousand, four hundred seven".