213232433987 has 2 divisors, whose sum is σ = 213232433988. Its totient is φ = 213232433986.

The previous prime is 213232433923. The next prime is 213232434007. The reversal of 213232433987 is 789334232312.

213232433987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213232433987 - 2⁶ = 213232433923 is a prime.

It is not a weakly prime, because it can be changed into another prime (213232433087) 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, 106616216993 + 106616216994.

It is an arithmetic number, because the mean of its divisors is an integer number (106616216994).

Almost surely, 2^213232433987 is an apocalyptic number.

213232433987 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232433987 is an equidigital number, since it uses as much as digits as its factorization.

213232433987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 47.

The spelling of 213232433987 in words is "two hundred thirteen billion, two hundred thirty-two million, four hundred thirty-three thousand, nine hundred eighty-seven".