20135630535091 has 2 divisors, whose sum is σ = 20135630535092. Its totient is φ = 20135630535090.

The previous prime is 20135630535043. The next prime is 20135630535101. The reversal of 20135630535091 is 19053503653102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20135630535091 - 2¹¹ = 20135630533043 is a prime.

It is not a weakly prime, because it can be changed into another prime (20135630535191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067815267545 + 10067815267546.

It is an arithmetic number, because the mean of its divisors is an integer number (10067815267546).

Almost surely, 2^{20135630535091} is an apocalyptic number.

20135630535091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20135630535091 is an equidigital number, since it uses as much as digits as its factorization.

20135630535091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 364500, while the sum is 43.

The spelling of 20135630535091 in words is "twenty trillion, one hundred thirty-five billion, six hundred thirty million, five hundred thirty-five thousand, ninety-one".