201432857023091 has 2 divisors, whose sum is σ = 201432857023092. Its totient is φ = 201432857023090.

The previous prime is 201432857023067. The next prime is 201432857023109. The reversal of 201432857023091 is 190320758234102.

Together with next prime (201432857023109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201432857023091 - 2³⁴ = 201415677153907 is a prime.

It is not a weakly prime, because it can be changed into another prime (201432857023051) 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, 100716428511545 + 100716428511546.

It is an arithmetic number, because the mean of its divisors is an integer number (100716428511546).

Almost surely, 2^{201432857023091} is an apocalyptic number.

201432857023091 is a deficient number, since it is larger than the sum of its proper divisors (1).

201432857023091 is an equidigital number, since it uses as much as digits as its factorization.

201432857023091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 201432857023091 in words is "two hundred one trillion, four hundred thirty-two billion, eight hundred fifty-seven million, twenty-three thousand, ninety-one".