21311300110 has 16 divisors (see below), whose sum is σ = 38372176656. Its totient is φ = 8521889728.

The previous prime is 21311300107. The next prime is 21311300123. The reversal of 21311300110 is 1100311312.

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, 294592 + ... + 359731.

It is an arithmetic number, because the mean of its divisors is an integer number (2398261041).

Almost surely, 2^21311300110 is an apocalyptic number.

21311300110 is a deficient number, since it is larger than the sum of its proper divisors (17060876546).

21311300110 is a wasteful number, since it uses less digits than its factorization.

21311300110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657587.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 21311300110 its reverse (1100311312), we get a palindrome (22411611422).

The spelling of 21311300110 in words is "twenty-one billion, three hundred eleven million, three hundred thousand, one hundred ten".