21111303130 has 32 divisors (see below), whose sum is σ = 39321676800. Its totient is φ = 8151054912.

The previous prime is 21111303127. The next prime is 21111303131. The reversal of 21111303130 is 3130311112.

It is not an unprimeable number, because it can be changed into a prime (21111303131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338631 + ... + 1354309.

It is an arithmetic number, because the mean of its divisors is an integer number (1228802400).

Almost surely, 2^21111303130 is an apocalyptic number.

21111303130 is a deficient number, since it is larger than the sum of its proper divisors (18210373670).

21111303130 is a wasteful number, since it uses less digits than its factorization.

21111303130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20358.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 21111303130 its reverse (3130311112), we get a palindrome (24241614242).

The spelling of 21111303130 in words is "twenty-one billion, one hundred eleven million, three hundred three thousand, one hundred thirty".