1211100132139 has 2 divisors, whose sum is σ = 1211100132140. Its totient is φ = 1211100132138.

The previous prime is 1211100132113. The next prime is 1211100132163. The reversal of 1211100132139 is 9312310011121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211100132139 - 2²¹ = 1211098034987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211100138139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605550066069 + 605550066070.

It is an arithmetic number, because the mean of its divisors is an integer number (605550066070).

Almost surely, 2^{1211100132139} is an apocalyptic number.

1211100132139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211100132139 is an equidigital number, since it uses as much as digits as its factorization.

1211100132139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 1211100132139 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred thirty-two thousand, one hundred thirty-nine".