13203231232187 has 2 divisors, whose sum is σ = 13203231232188. Its totient is φ = 13203231232186.

The previous prime is 13203231232153. The next prime is 13203231232193. The reversal of 13203231232187 is 78123213230231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13203231232187 - 2¹² = 13203231228091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13203231232187.

It is not a weakly prime, because it can be changed into another prime (13203231232127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6601615616093 + 6601615616094.

It is an arithmetic number, because the mean of its divisors is an integer number (6601615616094).

Almost surely, 2^{13203231232187} is an apocalyptic number.

13203231232187 is a deficient number, since it is larger than the sum of its proper divisors (1).

13203231232187 is an equidigital number, since it uses as much as digits as its factorization.

13203231232187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 13203231232187 in words is "thirteen trillion, two hundred three billion, two hundred thirty-one million, two hundred thirty-two thousand, one hundred eighty-seven".