2142242030321 has 2 divisors, whose sum is σ = 2142242030322. Its totient is φ = 2142242030320.

The previous prime is 2142242030281. The next prime is 2142242030329. The reversal of 2142242030321 is 1230302422412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1473176925025 + 669065105296 = 1213745^2 + 817964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142242030321 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142242030329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071121015160 + 1071121015161.

It is an arithmetic number, because the mean of its divisors is an integer number (1071121015161).

Almost surely, 2^{2142242030321} is an apocalyptic number.

It is an amenable number.

2142242030321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142242030321 is an equidigital number, since it uses as much as digits as its factorization.

2142242030321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2142242030321 its reverse (1230302422412), we get a palindrome (3372544452733).

The spelling of 2142242030321 in words is "two trillion, one hundred forty-two billion, two hundred forty-two million, thirty thousand, three hundred twenty-one".