100388386243097 has 2 divisors, whose sum is σ = 100388386243098. Its totient is φ = 100388386243096.

The previous prime is 100388386243049. The next prime is 100388386243129. The reversal of 100388386243097 is 790342683883001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100351187791936 + 37198451161 = 10017544^2 + 192869^2 .

It is a cyclic number.

It is not a de Polignac number, because 100388386243097 - 2³² = 100384091275801 is a prime.

It is not a weakly prime, because it can be changed into another prime (100388386243697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50194193121548 + 50194193121549.

It is an arithmetic number, because the mean of its divisors is an integer number (50194193121549).

Almost surely, 2^{100388386243097} is an apocalyptic number.

It is an amenable number.

100388386243097 is a deficient number, since it is larger than the sum of its proper divisors (1).

100388386243097 is an equidigital number, since it uses as much as digits as its factorization.

100388386243097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41803776, while the sum is 62.

The spelling of 100388386243097 in words is "one hundred trillion, three hundred eighty-eight billion, three hundred eighty-six million, two hundred forty-three thousand, ninety-seven".