213155311344511 has 2 divisors, whose sum is σ = 213155311344512. Its totient is φ = 213155311344510.

The previous prime is 213155311344413. The next prime is 213155311344529. The reversal of 213155311344511 is 115443113551312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213155311344511 - 2²⁵ = 213155277790079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213155311344011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106577655672255 + 106577655672256.

It is an arithmetic number, because the mean of its divisors is an integer number (106577655672256).

Almost surely, 2^{213155311344511} is an apocalyptic number.

213155311344511 is a deficient number, since it is larger than the sum of its proper divisors (1).

213155311344511 is an equidigital number, since it uses as much as digits as its factorization.

213155311344511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 40.

Adding to 213155311344511 its reverse (115443113551312), we get a palindrome (328598424895823).

The spelling of 213155311344511 in words is "two hundred thirteen trillion, one hundred fifty-five billion, three hundred eleven million, three hundred forty-four thousand, five hundred eleven".