21133441042040 has 32 divisors (see below), whose sum is σ = 47593352364480. Its totient is φ = 8445712413312.

The previous prime is 21133441042003. The next prime is 21133441042097. The reversal of 21133441042040 is 4024014433112.

It is a junction number, because it is equal to n+sod(n) for n = 21133441041994 and 21133441042012.

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, 239455439 + ... + 239543678.

It is an arithmetic number, because the mean of its divisors is an integer number (1487292261390).

Almost surely, 2^{21133441042040} is an apocalyptic number.

21133441042040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21133441042040 is an abundant number, since it is smaller than the sum of its proper divisors (26459911322440).

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

21133441042040 is a wasteful number, since it uses less digits than its factorization.

21133441042040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479000231 (or 479000227 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 21133441042040 its reverse (4024014433112), we get a palindrome (25157455475152).

The spelling of 21133441042040 in words is "twenty-one trillion, one hundred thirty-three billion, four hundred forty-one million, forty-two thousand, forty".