21113124340030 has 64 divisors (see below), whose sum is σ = 41099786975232. Its totient is φ = 7778501317120.

The previous prime is 21113124340003. The next prime is 21113124340097. The reversal of 21113124340030 is 3004342131112.

It is a junction number, because it is equal to n+sod(n) for n = 21113124339977 and 21113124340004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75213597 + ... + 75493783.

It is an arithmetic number, because the mean of its divisors is an integer number (642184171488).

Almost surely, 2^{21113124340030} is an apocalyptic number.

21113124340030 is a deficient number, since it is larger than the sum of its proper divisors (19986662635202).

21113124340030 is a wasteful number, since it uses less digits than its factorization.

21113124340030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289689.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21113124340030 its reverse (3004342131112), we get a palindrome (24117466471142).

The spelling of 21113124340030 in words is "twenty-one trillion, one hundred thirteen billion, one hundred twenty-four million, three hundred forty thousand, thirty".