21322002310 has 32 divisors (see below), whose sum is σ = 46442548800. Its totient is φ = 6880376832.

The previous prime is 21322002307. The next prime is 21322002367. The reversal of 21322002310 is 1320022312.

It is a super-2 number, since 2×21322002310² (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 15 ways as a sum of consecutive naturals, for example, 8957635 + ... + 8960014.

It is an arithmetic number, because the mean of its divisors is an integer number (1451329650).

Almost surely, 2^21322002310 is an apocalyptic number.

21322002310 is an abundant number, since it is smaller than the sum of its proper divisors (25120546490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21322002310 is a wasteful number, since it uses less digits than its factorization.

21322002310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17917680.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21322002310 its reverse (1320022312), we get a palindrome (22642024622).

It can be divided in two parts, 21322002 and 310, that added together give a palindrome (21322312).

The spelling of 21322002310 in words is "twenty-one billion, three hundred twenty-two million, two thousand, three hundred ten".