231550287873371 has 2 divisors, whose sum is σ = 231550287873372. Its totient is φ = 231550287873370.

The previous prime is 231550287873361. The next prime is 231550287873383. The reversal of 231550287873371 is 173378782055132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231550287873371 is a prime.

It is not a weakly prime, because it can be changed into another prime (231550287873361) 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, 115775143936685 + 115775143936686.

It is an arithmetic number, because the mean of its divisors is an integer number (115775143936686).

Almost surely, 2^{231550287873371} is an apocalyptic number.

231550287873371 is a deficient number, since it is larger than the sum of its proper divisors (1).

231550287873371 is an equidigital number, since it uses as much as digits as its factorization.

231550287873371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 59270400, while the sum is 62.

The spelling of 231550287873371 in words is "two hundred thirty-one trillion, five hundred fifty billion, two hundred eighty-seven million, eight hundred seventy-three thousand, three hundred seventy-one".