2142111131197 has 2 divisors, whose sum is σ = 2142111131198. Its totient is φ = 2142111131196.

The previous prime is 2142111131189. The next prime is 2142111131221. The reversal of 2142111131197 is 7911311112412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2138338837636 + 3772293561 = 1462306^2 + 61419^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142111131197 - 2³ = 2142111131189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142111131297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071055565598 + 1071055565599.

It is an arithmetic number, because the mean of its divisors is an integer number (1071055565599).

Almost surely, 2^{2142111131197} is an apocalyptic number.

It is an amenable number.

2142111131197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142111131197 is an equidigital number, since it uses as much as digits as its factorization.

2142111131197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 34.

The spelling of 2142111131197 in words is "two trillion, one hundred forty-two billion, one hundred eleven million, one hundred thirty-one thousand, one hundred ninety-seven".