21313130110 has 16 divisors (see below), whose sum is σ = 40382773200. Its totient is φ = 8076554496.

The previous prime is 21313130099. The next prime is 21313130131. The reversal of 21313130110 is 1103131312.

It is a super-2 number, since 2×21313130110² (a number of 21 digits) contains 22 as substring.

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, 56086995 + ... + 56087374.

It is an arithmetic number, because the mean of its divisors is an integer number (2523923325).

Almost surely, 2^21313130110 is an apocalyptic number.

21313130110 is a deficient number, since it is larger than the sum of its proper divisors (19069643090).

21313130110 is a wasteful number, since it uses less digits than its factorization.

21313130110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112174395.

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

Adding to 21313130110 its reverse (1103131312), we get a palindrome (22416261422).

The spelling of 21313130110 in words is "twenty-one billion, three hundred thirteen million, one hundred thirty thousand, one hundred ten".