100021020041 has 2 divisors, whose sum is σ = 100021020042. Its totient is φ = 100021020040.

The previous prime is 100021020013. The next prime is 100021020053. The reversal of 100021020041 is 140020120001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53070797641 + 46950222400 = 230371^2 + 216680^2 .

It is a cyclic number.

It is not a de Polignac number, because 100021020041 - 2¹⁴ = 100021003657 is a prime.

It is not a weakly prime, because it can be changed into another prime (100021020061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010510020 + 50010510021.

It is an arithmetic number, because the mean of its divisors is an integer number (50010510021).

Almost surely, 2^100021020041 is an apocalyptic number.

It is an amenable number.

100021020041 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021020041 is an equidigital number, since it uses as much as digits as its factorization.

100021020041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100021020041 its reverse (140020120001), we get a palindrome (240041140042).

The spelling of 100021020041 in words is "one hundred billion, twenty-one million, twenty thousand, forty-one".