213423321103121 has 16 divisors (see below), whose sum is σ = 220397953671168. Its totient is φ = 206454321320400.

The previous prime is 213423321103103. The next prime is 213423321103123. The reversal of 213423321103121 is 121301123324312.

It is a cyclic number.

It is not a de Polignac number, because 213423321103121 - 2¹⁰ = 213423321102097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213423321103123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2384813186 + ... + 2384902676.

It is an arithmetic number, because the mean of its divisors is an integer number (13774872104448).

Almost surely, 2^{213423321103121} is an apocalyptic number.

It is an amenable number.

213423321103121 is a deficient number, since it is larger than the sum of its proper divisors (6974632568047).

213423321103121 is a wasteful number, since it uses less digits than its factorization.

213423321103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120092.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 213423321103121 its reverse (121301123324312), we get a palindrome (334724444427433).

The spelling of 213423321103121 in words is "two hundred thirteen trillion, four hundred twenty-three billion, three hundred twenty-one million, one hundred three thousand, one hundred twenty-one".