2142312224491 has 2 divisors, whose sum is σ = 2142312224492. Its totient is φ = 2142312224490.

The previous prime is 2142312224477. The next prime is 2142312224551. The reversal of 2142312224491 is 1944222132412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2142312224491 - 2⁹ = 2142312223979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2142312224491.

It is not a weakly prime, because it can be changed into another prime (2142312224291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071156112245 + 1071156112246.

It is an arithmetic number, because the mean of its divisors is an integer number (1071156112246).

Almost surely, 2^{2142312224491} is an apocalyptic number.

2142312224491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142312224491 is an equidigital number, since it uses as much as digits as its factorization.

2142312224491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 37.

The spelling of 2142312224491 in words is "two trillion, one hundred forty-two billion, three hundred twelve million, two hundred twenty-four thousand, four hundred ninety-one".