21001201030232 has 16 divisors (see below), whose sum is σ = 39377899571760. Its totient is φ = 10500427811104.

The previous prime is 21001201030213. The next prime is 21001201030301. The reversal of 21001201030232 is 23203010210012.

It is a self number, because there is not a number n which added to its sum of digits gives 21001201030232.

It is a congruent number.

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, 21070463 + ... + 22044654.

It is an arithmetic number, because the mean of its divisors is an integer number (2461118723235).

Almost surely, 2^{21001201030232} is an apocalyptic number.

It is an amenable number.

21001201030232 is a deficient number, since it is larger than the sum of its proper divisors (18376698541528).

21001201030232 is a wasteful number, since it uses less digits than its factorization.

21001201030232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43176010 (or 43176006 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21001201030232 its reverse (23203010210012), we get a palindrome (44204211240244).

The spelling of 21001201030232 in words is "twenty-one trillion, one billion, two hundred one million, thirty thousand, two hundred thirty-two".