128362051085231 has 2 divisors, whose sum is σ = 128362051085232. Its totient is φ = 128362051085230.

The previous prime is 128362051085221. The next prime is 128362051085237. The reversal of 128362051085231 is 132580150263821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128362051085231 - 2⁴² = 123964004574127 is a prime.

It is a super-2 number, since 2×128362051085231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128362051085237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64181025542615 + 64181025542616.

It is an arithmetic number, because the mean of its divisors is an integer number (64181025542616).

Almost surely, 2^{128362051085231} is an apocalyptic number.

128362051085231 is a deficient number, since it is larger than the sum of its proper divisors (1).

128362051085231 is an equidigital number, since it uses as much as digits as its factorization.

128362051085231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 128362051085231 in words is "one hundred twenty-eight trillion, three hundred sixty-two billion, fifty-one million, eighty-five thousand, two hundred thirty-one".