20020200121093 has 2 divisors, whose sum is σ = 20020200121094. Its totient is φ = 20020200121092.

The previous prime is 20020200121073. The next prime is 20020200121133. The reversal of 20020200121093 is 39012100202002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18602857488609 + 1417342632484 = 4313103^2 + 1190522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020200121093 is a prime.

It is a super-2 number, since 2×20020200121093² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020200121073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010100060546 + 10010100060547.

It is an arithmetic number, because the mean of its divisors is an integer number (10010100060547).

Almost surely, 2^{20020200121093} is an apocalyptic number.

It is an amenable number.

20020200121093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020200121093 is an equidigital number, since it uses as much as digits as its factorization.

20020200121093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20020200121093 its reverse (39012100202002), we get a palindrome (59032300323095).

The spelling of 20020200121093 in words is "twenty trillion, twenty billion, two hundred million, one hundred twenty-one thousand, ninety-three".