21113331230 has 16 divisors (see below), whose sum is σ = 38033321040. Its totient is φ = 8438815872.

The previous prime is 21113331223. The next prime is 21113331257. The reversal of 21113331230 is 3213331112.

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, 800960 + ... + 826899.

It is an arithmetic number, because the mean of its divisors is an integer number (2377082565).

Almost surely, 2^21113331230 is an apocalyptic number.

21113331230 is a deficient number, since it is larger than the sum of its proper divisors (16919989810).

21113331230 is a wasteful number, since it uses less digits than its factorization.

21113331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629163.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21113331230 its reverse (3213331112), we get a palindrome (24326662342).

The spelling of 21113331230 in words is "twenty-one billion, one hundred thirteen million, three hundred thirty-one thousand, two hundred thirty".