213030521432121 has 32 divisors (see below), whose sum is σ = 285907411980288. Its totient is φ = 141087996181440.

The previous prime is 213030521432093. The next prime is 213030521432147. The reversal of 213030521432121 is 121234125030312.

It is not a de Polignac number, because 213030521432121 - 2²² = 213030517237817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213030521432021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14770187716 + ... + 14770202138.

It is an arithmetic number, because the mean of its divisors is an integer number (8934606624384).

Almost surely, 2^{213030521432121} is an apocalyptic number.

It is an amenable number.

213030521432121 is a deficient number, since it is larger than the sum of its proper divisors (72876890548167).

213030521432121 is a wasteful number, since it uses less digits than its factorization.

213030521432121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29661.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 213030521432121 its reverse (121234125030312), we get a palindrome (334264646462433).

The spelling of 213030521432121 in words is "two hundred thirteen trillion, thirty billion, five hundred twenty-one million, four hundred thirty-two thousand, one hundred twenty-one".