1020142441 has 2 divisors, whose sum is σ = 1020142442. Its totient is φ = 1020142440.

The previous prime is 1020142439. The next prime is 1020142447. The reversal of 1020142441 is 1442410201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 898260841 + 121881600 = 29971^2 + 11040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020142441 - 2¹ = 1020142439 is a prime.

Together with 1020142439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1020142447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510071220 + 510071221.

It is an arithmetic number, because the mean of its divisors is an integer number (510071221).

Almost surely, 2^1020142441 is an apocalyptic number.

It is an amenable number.

1020142441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020142441 is an equidigital number, since it uses as much as digits as its factorization.

1020142441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1020142441 is about 31939.6687678504. The cubic root of 1020142441 is about 1006.6695650083.

Adding to 1020142441 its reverse (1442410201), we get a palindrome (2462552642).

The spelling of 1020142441 in words is "one billion, twenty million, one hundred forty-two thousand, four hundred forty-one".