193431009103 has 2 divisors, whose sum is σ = 193431009104. Its totient is φ = 193431009102.

The previous prime is 193431009097. The next prime is 193431009127. The reversal of 193431009103 is 301900134391.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193431009103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193431009143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96715504551 + 96715504552.

It is an arithmetic number, because the mean of its divisors is an integer number (96715504552).

Almost surely, 2^193431009103 is an apocalyptic number.

193431009103 is a deficient number, since it is larger than the sum of its proper divisors (1).

193431009103 is an equidigital number, since it uses as much as digits as its factorization.

193431009103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 193431009103 in words is "one hundred ninety-three billion, four hundred thirty-one million, nine thousand, one hundred three".