21113332153030 has 64 divisors (see below), whose sum is σ = 41600231164800. Its totient is φ = 7667541918720.

The previous prime is 21113332152967. The next prime is 21113332153051. The reversal of 21113332153030 is 3035123331112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21113332153030.

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, 225236511 + ... + 225330229.

It is an arithmetic number, because the mean of its divisors is an integer number (650003611950).

Almost surely, 2^{21113332153030} is an apocalyptic number.

21113332153030 is a deficient number, since it is larger than the sum of its proper divisors (20486899011770).

21113332153030 is a wasteful number, since it uses less digits than its factorization.

21113332153030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122209.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 21113332153030 its reverse (3035123331112), we get a palindrome (24148455484142).

The spelling of 21113332153030 in words is "twenty-one trillion, one hundred thirteen billion, three hundred thirty-two million, one hundred fifty-three thousand, thirty".