213111212323 has 2 divisors, whose sum is σ = 213111212324. Its totient is φ = 213111212322.

The previous prime is 213111212287. The next prime is 213111212411. The reversal of 213111212323 is 323212111312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213111212323 - 2²⁹ = 212574341411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213111212294 and 213111212303.

It is not a weakly prime, because it can be changed into another prime (213111212023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106555606161 + 106555606162.

It is an arithmetic number, because the mean of its divisors is an integer number (106555606162).

Almost surely, 2^213111212323 is an apocalyptic number.

213111212323 is a deficient number, since it is larger than the sum of its proper divisors (1).

213111212323 is an equidigital number, since it uses as much as digits as its factorization.

213111212323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

Adding to 213111212323 its reverse (323212111312), we get a palindrome (536323323635).

The spelling of 213111212323 in words is "two hundred thirteen billion, one hundred eleven million, two hundred twelve thousand, three hundred twenty-three".