208374943031 has 2 divisors, whose sum is σ = 208374943032. Its totient is φ = 208374943030.

The previous prime is 208374943009. The next prime is 208374943097. The reversal of 208374943031 is 130349473802.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208374943031 is a prime.

It is a super-2 number, since 2×208374943031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208374903031) 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, 104187471515 + 104187471516.

It is an arithmetic number, because the mean of its divisors is an integer number (104187471516).

Almost surely, 2^208374943031 is an apocalyptic number.

208374943031 is a deficient number, since it is larger than the sum of its proper divisors (1).

208374943031 is an equidigital number, since it uses as much as digits as its factorization.

208374943031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 208374943031 in words is "two hundred eight billion, three hundred seventy-four million, nine hundred forty-three thousand, thirty-one".