100000120993 has 2 divisors, whose sum is σ = 100000120994. Its totient is φ = 100000120992.

The previous prime is 100000120937. The next prime is 100000121017. The reversal of 100000120993 is 399021000001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70698555664 + 29301565329 = 265892^2 + 171177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100000120993 is a prime.

It is a super-2 number, since 2×100000120993² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100000120903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000060496 + 50000060497.

It is an arithmetic number, because the mean of its divisors is an integer number (50000060497).

Almost surely, 2^100000120993 is an apocalyptic number.

It is an amenable number.

100000120993 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000120993 is an equidigital number, since it uses as much as digits as its factorization.

100000120993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

Adding to 100000120993 its reverse (399021000001), we get a palindrome (499021120994).

The spelling of 100000120993 in words is "one hundred billion, one hundred twenty thousand, nine hundred ninety-three".