208893404131 has 2 divisors, whose sum is σ = 208893404132. Its totient is φ = 208893404130.

The previous prime is 208893404119. The next prime is 208893404221. The reversal of 208893404131 is 131404398802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208893404131 - 2¹³ = 208893395939 is a prime.

It is a super-2 number, since 2×208893404131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (208893404231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104446702065 + 104446702066.

It is an arithmetic number, because the mean of its divisors is an integer number (104446702066).

Almost surely, 2^208893404131 is an apocalyptic number.

208893404131 is a deficient number, since it is larger than the sum of its proper divisors (1).

208893404131 is an equidigital number, since it uses as much as digits as its factorization.

208893404131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 208893404131 in words is "two hundred eight billion, eight hundred ninety-three million, four hundred four thousand, one hundred thirty-one".