28131671203 has 2 divisors, whose sum is σ = 28131671204. Its totient is φ = 28131671202.

The previous prime is 28131671201. The next prime is 28131671221. The reversal of 28131671203 is 30217613182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28131671203 - 2¹ = 28131671201 is a prime.

Together with 28131671201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28131671201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14065835601 + 14065835602.

It is an arithmetic number, because the mean of its divisors is an integer number (14065835602).

Almost surely, 2^28131671203 is an apocalyptic number.

28131671203 is a deficient number, since it is larger than the sum of its proper divisors (1).

28131671203 is an equidigital number, since it uses as much as digits as its factorization.

28131671203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 28131671203 in words is "twenty-eight billion, one hundred thirty-one million, six hundred seventy-one thousand, two hundred three".