2110431647421 has 24 divisors (see below), whose sum is σ = 3092714701440. Its totient is φ = 1386623460096.

The previous prime is 2110431647419. The next prime is 2110431647449. The reversal of 2110431647421 is 1247461340112.

2110431647421 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 4 + 3 + 1 + 647 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 2110431647421 - 2¹ = 2110431647419 is a prime.

It is a super-2 number, since 2×2110431647421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110431647521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4848775 + ... + 5266068.

It is an arithmetic number, because the mean of its divisors is an integer number (128863112560).

Almost surely, 2^{2110431647421} is an apocalyptic number.

It is an amenable number.

2110431647421 is a deficient number, since it is larger than the sum of its proper divisors (982283054019).

2110431647421 is a wasteful number, since it uses less digits than its factorization.

2110431647421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10115185 (or 10115182 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

Adding to 2110431647421 its reverse (1247461340112), we get a palindrome (3357892987533).

The spelling of 2110431647421 in words is "two trillion, one hundred ten billion, four hundred thirty-one million, six hundred forty-seven thousand, four hundred twenty-one".