213121213323014 has 64 divisors (see below), whose sum is σ = 334597603507200. Its totient is φ = 101679900715008.

The previous prime is 213121213323013. The next prime is 213121213323037. The reversal of 213121213323014 is 410323312121312.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213121213323013) 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 31 ways as a sum of consecutive naturals, for example, 18812000102 + ... + 18812011430.

It is an arithmetic number, because the mean of its divisors is an integer number (5228087554800).

Almost surely, 2^{213121213323014} is an apocalyptic number.

213121213323014 is a deficient number, since it is larger than the sum of its proper divisors (121476390184186).

213121213323014 is a wasteful number, since it uses less digits than its factorization.

213121213323014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18477.

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

Adding to 213121213323014 its reverse (410323312121312), we get a palindrome (623444525444326).

The spelling of 213121213323014 in words is "two hundred thirteen trillion, one hundred twenty-one billion, two hundred thirteen million, three hundred twenty-three thousand, fourteen".