21102330310 has 16 divisors (see below), whose sum is σ = 38008839456. Its totient is φ = 8435455488.

The previous prime is 21102330257. The next prime is 21102330311. The reversal of 21102330310 is 1303320112.

It is a super-2 number, since 2×21102330310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102330311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668379 + ... + 699238.

It is an arithmetic number, because the mean of its divisors is an integer number (2375552466).

Almost surely, 2^21102330310 is an apocalyptic number.

21102330310 is a deficient number, since it is larger than the sum of its proper divisors (16906509146).

21102330310 is a wasteful number, since it uses less digits than its factorization.

21102330310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369167.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21102330310 its reverse (1303320112), we get a palindrome (22405650422).

The spelling of 21102330310 in words is "twenty-one billion, one hundred two million, three hundred thirty thousand, three hundred ten".