21103132310 has 16 divisors (see below), whose sum is σ = 40907610576. Its totient is φ = 7791925728.

The previous prime is 21103132301. The next prime is 21103132313. The reversal of 21103132310 is 1323130112.

It is a super-2 number, since 2×21103132310² (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 (21103132313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81165764 + ... + 81166023.

It is an arithmetic number, because the mean of its divisors is an integer number (2556725661).

Almost surely, 2^21103132310 is an apocalyptic number.

21103132310 is a deficient number, since it is larger than the sum of its proper divisors (19804478266).

21103132310 is a wasteful number, since it uses less digits than its factorization.

21103132310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162331807.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21103132310 its reverse (1323130112), we get a palindrome (22426262422).

The spelling of 21103132310 in words is "twenty-one billion, one hundred three million, one hundred thirty-two thousand, three hundred ten".