21101101130 has 32 divisors (see below), whose sum is σ = 40117593600. Its totient is φ = 7968894912.

The previous prime is 21101101081. The next prime is 21101101139. The reversal of 21101101130 is 3110110112.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21101101139) 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, 133850 + ... + 245189.

It is an arithmetic number, because the mean of its divisors is an integer number (1253674800).

Almost surely, 2^21101101130 is an apocalyptic number.

21101101130 is a deficient number, since it is larger than the sum of its proper divisors (19016492470).

21101101130 is a wasteful number, since it uses less digits than its factorization.

21101101130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379358.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 21101101130 its reverse (3110110112), we get a palindrome (24211211242).

The spelling of 21101101130 in words is "twenty-one billion, one hundred one million, one hundred one thousand, one hundred thirty".