100308720361 has 2 divisors, whose sum is σ = 100308720362. Its totient is φ = 100308720360.

The previous prime is 100308720341. The next prime is 100308720419. The reversal of 100308720361 is 163027803001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74046573225 + 26262147136 = 272115^2 + 162056^2 .

It is a cyclic number.

It is not a de Polignac number, because 100308720361 - 2¹³ = 100308712169 is a prime.

It is a super-2 number, since 2×100308720361² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100308720341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50154360180 + 50154360181.

It is an arithmetic number, because the mean of its divisors is an integer number (50154360181).

Almost surely, 2^100308720361 is an apocalyptic number.

It is an amenable number.

100308720361 is a deficient number, since it is larger than the sum of its proper divisors (1).

100308720361 is an equidigital number, since it uses as much as digits as its factorization.

100308720361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 100308720361 in words is "one hundred billion, three hundred eight million, seven hundred twenty thousand, three hundred sixty-one".