100312432393 has 2 divisors, whose sum is σ = 100312432394. Its totient is φ = 100312432392.

The previous prime is 100312432391. The next prime is 100312432463. The reversal of 100312432393 is 393234213001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90040204489 + 10272227904 = 300067^2 + 101352^2 .

It is a cyclic number.

It is not a de Polignac number, because 100312432393 - 2¹ = 100312432391 is a prime.

Together with 100312432391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100312432391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50156216196 + 50156216197.

It is an arithmetic number, because the mean of its divisors is an integer number (50156216197).

Almost surely, 2^100312432393 is an apocalyptic number.

It is an amenable number.

100312432393 is a deficient number, since it is larger than the sum of its proper divisors (1).

100312432393 is an equidigital number, since it uses as much as digits as its factorization.

100312432393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 31.

Adding to 100312432393 its reverse (393234213001), we get a palindrome (493546645394).

The spelling of 100312432393 in words is "one hundred billion, three hundred twelve million, four hundred thirty-two thousand, three hundred ninety-three".