31287083323 has 2 divisors, whose sum is σ = 31287083324. Its totient is φ = 31287083322.

The previous prime is 31287083293. The next prime is 31287083353. The reversal of 31287083323 is 32338078213.

It is a balanced prime because it is at equal distance from previous prime (31287083293) and next prime (31287083353).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31287083323 is a prime.

It is not a weakly prime, because it can be changed into another prime (31287083353) 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, 15643541661 + 15643541662.

It is an arithmetic number, because the mean of its divisors is an integer number (15643541662).

Almost surely, 2^31287083323 is an apocalyptic number.

31287083323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31287083323 is an equidigital number, since it uses as much as digits as its factorization.

31287083323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 31287083323 in words is "thirty-one billion, two hundred eighty-seven million, eighty-three thousand, three hundred twenty-three".