213142412242121 has 8 divisors (see below), whose sum is σ = 215732023389120. Its totient is φ = 210553316101872.

The previous prime is 213142412242093. The next prime is 213142412242141. The reversal of 213142412242121 is 121242214241312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213142412242121 - 2³⁸ = 212867534335177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213142412242141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127918901 + ... + 129574418.

It is an arithmetic number, because the mean of its divisors is an integer number (26966502923640).

Almost surely, 2^{213142412242121} is an apocalyptic number.

It is an amenable number.

213142412242121 is a deficient number, since it is larger than the sum of its proper divisors (2589611146999).

213142412242121 is an equidigital number, since it uses as much as digits as its factorization.

213142412242121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257503375.

The product of its digits is 12288, while the sum is 32.

Adding to 213142412242121 its reverse (121242214241312), we get a palindrome (334384626483433).

The spelling of 213142412242121 in words is "two hundred thirteen trillion, one hundred forty-two billion, four hundred twelve million, two hundred forty-two thousand, one hundred twenty-one".