21410143021040 has 40 divisors (see below), whose sum is σ = 49778860327008. Its totient is φ = 8564009414400.

The previous prime is 21410143021039. The next prime is 21410143021067. The reversal of 21410143021040 is 4012034101412.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 21410143020997 and 21410143021015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16014365 + ... + 17299715.

Almost surely, 2^{21410143021040} is an apocalyptic number.

21410143021040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21410143021040 is an abundant number, since it is smaller than the sum of its proper divisors (28368717305968).

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

21410143021040 is a wasteful number, since it uses less digits than its factorization.

21410143021040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493577 (or 1493571 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21410143021040 its reverse (4012034101412), we get a palindrome (25422177122452).

The spelling of 21410143021040 in words is "twenty-one trillion, four hundred ten billion, one hundred forty-three million, twenty-one thousand, forty".