2142539920811 has 2 divisors, whose sum is σ = 2142539920812. Its totient is φ = 2142539920810.

The previous prime is 2142539920757. The next prime is 2142539920853. The reversal of 2142539920811 is 1180299352412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142539920811 - 2⁶ = 2142539920747 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142539920891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071269960405 + 1071269960406.

It is an arithmetic number, because the mean of its divisors is an integer number (1071269960406).

Almost surely, 2^{2142539920811} is an apocalyptic number.

2142539920811 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142539920811 is an equidigital number, since it uses as much as digits as its factorization.

2142539920811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 2142539920811 in words is "two trillion, one hundred forty-two billion, five hundred thirty-nine million, nine hundred twenty thousand, eight hundred eleven".