100343305121 has 2 divisors, whose sum is σ = 100343305122. Its totient is φ = 100343305120.

The previous prime is 100343305109. The next prime is 100343305147. The reversal of 100343305121 is 121503343001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90186696721 + 10156608400 = 300311^2 + 100780^2 .

It is a cyclic number.

It is not a de Polignac number, because 100343305121 - 2⁶ = 100343305057 is a prime.

It is a super-2 number, since 2×100343305121² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100343305151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50171652560 + 50171652561.

It is an arithmetic number, because the mean of its divisors is an integer number (50171652561).

Almost surely, 2^100343305121 is an apocalyptic number.

It is an amenable number.

100343305121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100343305121 is an equidigital number, since it uses as much as digits as its factorization.

100343305121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 100343305121 its reverse (121503343001), we get a palindrome (221846648122).

The spelling of 100343305121 in words is "one hundred billion, three hundred forty-three million, three hundred five thousand, one hundred twenty-one".