1020024243281 has 2 divisors, whose sum is σ = 1020024243282. Its totient is φ = 1020024243280.

The previous prime is 1020024243223. The next prime is 1020024243283. The reversal of 1020024243281 is 1823424200201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 958313734225 + 61710509056 = 978935^2 + 248416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020024243281 - 2²² = 1020020048977 is a prime.

It is a super-2 number, since 2×1020024243281² (a number of 25 digits) contains 22 as substring.

Together with 1020024243283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1020024243283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510012121640 + 510012121641.

It is an arithmetic number, because the mean of its divisors is an integer number (510012121641).

Almost surely, 2^{1020024243281} is an apocalyptic number.

It is an amenable number.

1020024243281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020024243281 is an equidigital number, since it uses as much as digits as its factorization.

1020024243281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1020024243281 its reverse (1823424200201), we get a palindrome (2843448443482).

The spelling of 1020024243281 in words is "one trillion, twenty billion, twenty-four million, two hundred forty-three thousand, two hundred eighty-one".