201000012020117 has 2 divisors, whose sum is σ = 201000012020118. Its totient is φ = 201000012020116.

The previous prime is 201000012019979. The next prime is 201000012020207. The reversal of 201000012020117 is 711020210000102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199315919249041 + 1684092771076 = 14117929^2 + 1297726^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000012020117 - 2¹⁴ = 201000012003733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201000012020095 and 201000012020104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201000012025117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500006010058 + 100500006010059.

It is an arithmetic number, because the mean of its divisors is an integer number (100500006010059).

Almost surely, 2^{201000012020117} is an apocalyptic number.

It is an amenable number.

201000012020117 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000012020117 is an equidigital number, since it uses as much as digits as its factorization.

201000012020117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 201000012020117 its reverse (711020210000102), we get a palindrome (912020222020219).

The spelling of 201000012020117 in words is "two hundred one trillion, twelve million, twenty thousand, one hundred seventeen".