120210999891139 has 2 divisors, whose sum is σ = 120210999891140. Its totient is φ = 120210999891138.

The previous prime is 120210999891127. The next prime is 120210999891253. The reversal of 120210999891139 is 931198999012021.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (931198999012021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120210999891139 - 2⁵ = 120210999891107 is a prime.

It is not a weakly prime, because it can be changed into another prime (120210999891539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105499945569 + 60105499945570.

It is an arithmetic number, because the mean of its divisors is an integer number (60105499945570).

Almost surely, 2^{120210999891139} is an apocalyptic number.

120210999891139 is a deficient number, since it is larger than the sum of its proper divisors (1).

120210999891139 is an equidigital number, since it uses as much as digits as its factorization.

120210999891139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5668704, while the sum is 64.

The spelling of 120210999891139 in words is "one hundred twenty trillion, two hundred ten billion, nine hundred ninety-nine million, eight hundred ninety-one thousand, one hundred thirty-nine".