21321302103310 has 32 divisors (see below), whose sum is σ = 42196947812352. Its totient is φ = 7692151934880.

The previous prime is 21321302103287. The next prime is 21321302103359. The reversal of 21321302103310 is 1330120312312.

It is a super-2 number, since 2×21321302103310² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 763096342 + ... + 763124281.

It is an arithmetic number, because the mean of its divisors is an integer number (1318654619136).

Almost surely, 2^{21321302103310} is an apocalyptic number.

21321302103310 is a deficient number, since it is larger than the sum of its proper divisors (20875645709042).

21321302103310 is a wasteful number, since it uses less digits than its factorization.

21321302103310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526220768.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21321302103310 its reverse (1330120312312), we get a palindrome (22651422415622).

The spelling of 21321302103310 in words is "twenty-one trillion, three hundred twenty-one billion, three hundred two million, one hundred three thousand, three hundred ten".