213121332130 has 64 divisors (see below), whose sum is σ = 454016441088. Its totient is φ = 70516143360.

The previous prime is 213121332091. The next prime is 213121332181. The reversal of 213121332130 is 31233121312.

213121332130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244552 + ... + 697171.

It is an arithmetic number, because the mean of its divisors is an integer number (7094006892).

Almost surely, 2^213121332130 is an apocalyptic number.

213121332130 is an abundant number, since it is smaller than the sum of its proper divisors (240895108958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213121332130 is a wasteful number, since it uses less digits than its factorization.

213121332130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941851.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213121332130 its reverse (31233121312), we get a palindrome (244354453442).

The spelling of 213121332130 in words is "two hundred thirteen billion, one hundred twenty-one million, three hundred thirty-two thousand, one hundred thirty".