384791135231 has 2 divisors, whose sum is σ = 384791135232. Its totient is φ = 384791135230.

The previous prime is 384791135221. The next prime is 384791135243. The reversal of 384791135231 is 132531197483.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384791135231 is a prime.

It is a super-2 number, since 2×384791135231² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384791135221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192395567615 + 192395567616.

It is an arithmetic number, because the mean of its divisors is an integer number (192395567616).

Almost surely, 2^384791135231 is an apocalyptic number.

384791135231 is a deficient number, since it is larger than the sum of its proper divisors (1).

384791135231 is an equidigital number, since it uses as much as digits as its factorization.

384791135231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The spelling of 384791135231 in words is "three hundred eighty-four billion, seven hundred ninety-one million, one hundred thirty-five thousand, two hundred thirty-one".