10111020021017 has 2 divisors, whose sum is σ = 10111020021018. Its totient is φ = 10111020021016.

The previous prime is 10111020021001. The next prime is 10111020021031. The reversal of 10111020021017 is 71012002011101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9272731453456 + 838288567561 = 3045116^2 + 915581^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111020021017 - 2⁴ = 10111020021001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10111020020986 and 10111020021004.

It is not a weakly prime, because it can be changed into another prime (10111020021317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055510010508 + 5055510010509.

It is an arithmetic number, because the mean of its divisors is an integer number (5055510010509).

Almost surely, 2^{10111020021017} is an apocalyptic number.

It is an amenable number.

10111020021017 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111020021017 is an equidigital number, since it uses as much as digits as its factorization.

10111020021017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 10111020021017 its reverse (71012002011101), we get a palindrome (81123022032118).

The spelling of 10111020021017 in words is "ten trillion, one hundred eleven billion, twenty million, twenty-one thousand, seventeen".