136943124091 has 2 divisors, whose sum is σ = 136943124092. Its totient is φ = 136943124090.

The previous prime is 136943124089. The next prime is 136943124103. The reversal of 136943124091 is 190421349631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136943124091 - 2¹ = 136943124089 is a prime.

Together with 136943124089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (136943124491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68471562045 + 68471562046.

It is an arithmetic number, because the mean of its divisors is an integer number (68471562046).

Almost surely, 2^136943124091 is an apocalyptic number.

136943124091 is a deficient number, since it is larger than the sum of its proper divisors (1).

136943124091 is an equidigital number, since it uses as much as digits as its factorization.

136943124091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 136943124091 in words is "one hundred thirty-six billion, nine hundred forty-three million, one hundred twenty-four thousand, ninety-one".