21014004024331 has 8 divisors (see below), whose sum is σ = 21215937274704. Its totient is φ = 20813030077440.

The previous prime is 21014004024283. The next prime is 21014004024347. The reversal of 21014004024331 is 13342040041012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21014004024331 - 2³⁷ = 20876565070859 is a prime.

It is a super-2 number, since 2×21014004024331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21014004024296 and 21014004024305.

It is not an unprimeable number, because it can be changed into a prime (21014004028331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239781850 + ... + 239869471.

It is an arithmetic number, because the mean of its divisors is an integer number (2651992159338).

Almost surely, 2^{21014004024331} is an apocalyptic number.

21014004024331 is a deficient number, since it is larger than the sum of its proper divisors (201933250373).

21014004024331 is a wasteful number, since it uses less digits than its factorization.

21014004024331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479651741.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21014004024331 its reverse (13342040041012), we get a palindrome (34356044065343).

The spelling of 21014004024331 in words is "twenty-one trillion, fourteen billion, four million, twenty-four thousand, three hundred thirty-one".