213410402442121 has 16 divisors (see below), whose sum is σ = 227444559003648. Its totient is φ = 199902444134400.

The previous prime is 213410402442077. The next prime is 213410402442239. The reversal of 213410402442121 is 121244204014312.

It is a cyclic number.

It is not a de Polignac number, because 213410402442121 - 2¹⁷ = 213410402311049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213410402448121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660891640 + ... + 661214473.

It is an arithmetic number, because the mean of its divisors is an integer number (14215284937728).

Almost surely, 2^{213410402442121} is an apocalyptic number.

It is an amenable number.

213410402442121 is a deficient number, since it is larger than the sum of its proper divisors (14034156561527).

213410402442121 is a wasteful number, since it uses less digits than its factorization.

213410402442121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322106312.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 213410402442121 its reverse (121244204014312), we get a palindrome (334654606456433).

The spelling of 213410402442121 in words is "two hundred thirteen trillion, four hundred ten billion, four hundred two million, four hundred forty-two thousand, one hundred twenty-one".