213121041004 has 12 divisors (see below), whose sum is σ = 373411721200. Its totient is φ = 106431977808.

The previous prime is 213121040989. The next prime is 213121041097. The reversal of 213121041004 is 400140121312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32131944 + ... + 32138575.

Almost surely, 2^213121041004 is an apocalyptic number.

It is an amenable number.

213121041004 is a deficient number, since it is larger than the sum of its proper divisors (160290680196).

213121041004 is a wasteful number, since it uses less digits than its factorization.

213121041004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64271352 (or 64271350 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 213121041004 its reverse (400140121312), we get a palindrome (613261162316).

The spelling of 213121041004 in words is "two hundred thirteen billion, one hundred twenty-one million, forty-one thousand, four".