2129947011139 has 2 divisors, whose sum is σ = 2129947011140. Its totient is φ = 2129947011138.

The previous prime is 2129947011107. The next prime is 2129947011151. The reversal of 2129947011139 is 9311107499212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2129947011139 - 2⁵ = 2129947011107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2129947011092 and 2129947011101.

It is not a weakly prime, because it can be changed into another prime (2129947111139) 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, 1064973505569 + 1064973505570.

It is an arithmetic number, because the mean of its divisors is an integer number (1064973505570).

Almost surely, 2^{2129947011139} is an apocalyptic number.

2129947011139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129947011139 is an equidigital number, since it uses as much as digits as its factorization.

2129947011139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 49.

The spelling of 2129947011139 in words is "two trillion, one hundred twenty-nine billion, nine hundred forty-seven million, eleven thousand, one hundred thirty-nine".