21004014031000 has 256 divisors, whose sum is σ = 65990796318720. Its totient is φ = 6043112640000.

The previous prime is 21004014030971. The next prime is 21004014031001. The reversal of 21004014031000 is 13041040012.

It is a super-2 number, since 2×21004014031000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21004014031001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9490516 + ... + 11492515.

It is an arithmetic number, because the mean of its divisors is an integer number (257776548120).

Almost surely, 2^{21004014031000} is an apocalyptic number.

21004014031000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21004014031000 is an abundant number, since it is smaller than the sum of its proper divisors (44986782287720).

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

21004014031000 is a wasteful number, since it uses less digits than its factorization.

21004014031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20983083 (or 20983069 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21004014031000 its reverse (13041040012), we get a palindrome (21017055071012).

The spelling of 21004014031000 in words is "twenty-one trillion, four billion, fourteen million, thirty-one thousand".