213210301055123 has 2 divisors, whose sum is σ = 213210301055124. Its totient is φ = 213210301055122.

The previous prime is 213210301055107. The next prime is 213210301055207. The reversal of 213210301055123 is 321550103012312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213210301055123 - 2⁴ = 213210301055107 is a prime.

It is not a weakly prime, because it can be changed into another prime (213210301015123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106605150527561 + 106605150527562.

It is an arithmetic number, because the mean of its divisors is an integer number (106605150527562).

Almost surely, 2^{213210301055123} is an apocalyptic number.

213210301055123 is a deficient number, since it is larger than the sum of its proper divisors (1).

213210301055123 is an equidigital number, since it uses as much as digits as its factorization.

213210301055123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 213210301055123 its reverse (321550103012312), we get a palindrome (534760404067435).

The spelling of 213210301055123 in words is "two hundred thirteen trillion, two hundred ten billion, three hundred one million, fifty-five thousand, one hundred twenty-three".