21323476310 has 16 divisors (see below), whose sum is σ = 38554379136. Its totient is φ = 8491141248.

The previous prime is 21323476303. The next prime is 21323476319. The reversal of 21323476310 is 1367432312.

It is a super-2 number, since 2×21323476310² (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 (21323476319) 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, 4778819 + ... + 4783278.

It is an arithmetic number, because the mean of its divisors is an integer number (2409648696).

Almost surely, 2^21323476310 is an apocalyptic number.

21323476310 is a deficient number, since it is larger than the sum of its proper divisors (17230902826).

21323476310 is a wasteful number, since it uses less digits than its factorization.

21323476310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562327.

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 21323476310 in words is "twenty-one billion, three hundred twenty-three million, four hundred seventy-six thousand, three hundred ten".