21113342102040 has 128 divisors (see below), whose sum is σ = 67076024832000. Its totient is φ = 5298235701248.

The previous prime is 21113342102033. The next prime is 21113342102117. The reversal of 21113342102040 is 4020124331112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 21113342102040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12807241 + ... + 14361479.

It is an arithmetic number, because the mean of its divisors is an integer number (524031444000).

Almost surely, 2^{21113342102040} is an apocalyptic number.

21113342102040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21113342102040 is an abundant number, since it is smaller than the sum of its proper divisors (45962682729960).

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

21113342102040 is a wasteful number, since it uses less digits than its factorization.

21113342102040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560929 (or 1560925 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21113342102040 its reverse (4020124331112), we get a palindrome (25133466433152).

The spelling of 21113342102040 in words is "twenty-one trillion, one hundred thirteen billion, three hundred forty-two million, one hundred two thousand, forty".