21113200110030 has 64 divisors (see below), whose sum is σ = 57917459427840. Its totient is φ = 4825293669504.

The previous prime is 21113200110017. The next prime is 21113200110073. The reversal of 21113200110030 is 3001100231112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 21113200109991 and 21113200110009.

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, 4297620 + ... + 7790759.

It is an arithmetic number, because the mean of its divisors is an integer number (904960303560).

Almost surely, 2^{21113200110030} is an apocalyptic number.

21113200110030 is an abundant number, since it is smaller than the sum of its proper divisors (36804259317810).

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

21113200110030 is a wasteful number, since it uses less digits than its factorization.

21113200110030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12096713.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 21113200110030 its reverse (3001100231112), we get a palindrome (24114300341142).

The spelling of 21113200110030 in words is "twenty-one trillion, one hundred thirteen billion, two hundred million, one hundred ten thousand, thirty".