1021020201041 has 2 divisors, whose sum is σ = 1021020201042. Its totient is φ = 1021020201040.

The previous prime is 1021020200999. The next prime is 1021020201043. The reversal of 1021020201041 is 1401020201201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1011120747025 + 9899454016 = 1005545^2 + 99496^2 .

It is an emirp because it is prime and its reverse (1401020201201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021020201041 is a prime.

Together with 1021020201043, 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 (1021020201043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510510100520 + 510510100521.

It is an arithmetic number, because the mean of its divisors is an integer number (510510100521).

Almost surely, 2^{1021020201041} is an apocalyptic number.

It is an amenable number.

1021020201041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021020201041 is an equidigital number, since it uses as much as digits as its factorization.

1021020201041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021020201041 its reverse (1401020201201), we get a palindrome (2422040402242).

The spelling of 1021020201041 in words is "one trillion, twenty-one billion, twenty million, two hundred one thousand, forty-one".