103788191251 has 4 divisors (see below), whose sum is σ = 103866879600. Its totient is φ = 103709502904.

The previous prime is 103788191209. The next prime is 103788191261. The reversal of 103788191251 is 152191887301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152191887301 = 39293 ⋅3873257.

It is a cyclic number.

It is not a de Polignac number, because 103788191251 - 2⁹ = 103788190739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103788191261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39342196 + ... + 39344833.

It is an arithmetic number, because the mean of its divisors is an integer number (25966719900).

Almost surely, 2^103788191251 is an apocalyptic number.

103788191251 is a deficient number, since it is larger than the sum of its proper divisors (78688349).

103788191251 is an equidigital number, since it uses as much as digits as its factorization.

103788191251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78688348.

The product of its (nonzero) digits is 120960, while the sum is 46.

The spelling of 103788191251 in words is "one hundred three billion, seven hundred eighty-eight million, one hundred ninety-one thousand, two hundred fifty-one".