12599889103 has 4 divisors (see below), whose sum is σ = 12644728848. Its totient is φ = 12555049360.

The previous prime is 12599889101. The next prime is 12599889131. The reversal of 12599889103 is 30198899521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12599889103 - 2¹ = 12599889101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12599889101) 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, 22419451 + ... + 22420012.

It is an arithmetic number, because the mean of its divisors is an integer number (3161182212).

Almost surely, 2^12599889103 is an apocalyptic number.

12599889103 is a deficient number, since it is larger than the sum of its proper divisors (44839745).

12599889103 is an equidigital number, since it uses as much as digits as its factorization.

12599889103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44839744.

The product of its (nonzero) digits is 1399680, while the sum is 55.

The spelling of 12599889103 in words is "twelve billion, five hundred ninety-nine million, eight hundred eighty-nine thousand, one hundred three".