213200121432 has 64 divisors (see below), whose sum is σ = 550280079360. Its totient is φ = 68763456000.

The previous prime is 213200121427. The next prime is 213200121461. The reversal of 213200121432 is 234121002312.

It is a junction number, because it is equal to n+sod(n) for n = 213200121399 and 213200121408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5712432 + ... + 5749632.

It is an arithmetic number, because the mean of its divisors is an integer number (8598126240).

Almost surely, 2^213200121432 is an apocalyptic number.

It is an amenable number.

213200121432 is an abundant number, since it is smaller than the sum of its proper divisors (337079957928).

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

213200121432 is a wasteful number, since it uses less digits than its factorization.

213200121432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44944 (or 44940 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 213200121432 its reverse (234121002312), we get a palindrome (447321123744).

The spelling of 213200121432 in words is "two hundred thirteen billion, two hundred million, one hundred twenty-one thousand, four hundred thirty-two".