29121144112187 has 2 divisors, whose sum is σ = 29121144112188. Its totient is φ = 29121144112186.

The previous prime is 29121144112157. The next prime is 29121144112243. The reversal of 29121144112187 is 78121144112192.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29121144112187 - 2²⁰ = 29121143063611 is a prime.

It is not a weakly prime, because it can be changed into another prime (29121144112157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14560572056093 + 14560572056094.

It is an arithmetic number, because the mean of its divisors is an integer number (14560572056094).

Almost surely, 2^{29121144112187} is an apocalyptic number.

29121144112187 is a deficient number, since it is larger than the sum of its proper divisors (1).

29121144112187 is an equidigital number, since it uses as much as digits as its factorization.

29121144112187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 44.

The spelling of 29121144112187 in words is "twenty-nine trillion, one hundred twenty-one billion, one hundred forty-four million, one hundred twelve thousand, one hundred eighty-seven".