213122003287 has 2 divisors, whose sum is σ = 213122003288. Its totient is φ = 213122003286.

The previous prime is 213122003243. The next prime is 213122003407. The reversal of 213122003287 is 782300221312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213122003287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213122003687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561001643 + 106561001644.

It is an arithmetic number, because the mean of its divisors is an integer number (106561001644).

Almost surely, 2^213122003287 is an apocalyptic number.

213122003287 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122003287 is an equidigital number, since it uses as much as digits as its factorization.

213122003287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 213122003287 its reverse (782300221312), we get a palindrome (995422224599).

The spelling of 213122003287 in words is "two hundred thirteen billion, one hundred twenty-two million, three thousand, two hundred eighty-seven".