104431111157 has 2 divisors, whose sum is σ = 104431111158. Its totient is φ = 104431111156.

The previous prime is 104431111133. The next prime is 104431111247. The reversal of 104431111157 is 751111134401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70217580196 + 34213530961 = 264986^2 + 184969^2 .

It is a cyclic number.

It is not a de Polignac number, because 104431111157 - 2¹⁸ = 104430849013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104431114157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52215555578 + 52215555579.

It is an arithmetic number, because the mean of its divisors is an integer number (52215555579).

Almost surely, 2^104431111157 is an apocalyptic number.

It is an amenable number.

104431111157 is a deficient number, since it is larger than the sum of its proper divisors (1).

104431111157 is an equidigital number, since it uses as much as digits as its factorization.

104431111157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 29.

Adding to 104431111157 its reverse (751111134401), we get a palindrome (855542245558).

The spelling of 104431111157 in words is "one hundred four billion, four hundred thirty-one million, one hundred eleven thousand, one hundred fifty-seven".