21313212313102 has 8 divisors (see below), whose sum is σ = 33001102936512. Its totient is φ = 10312844667600.

The previous prime is 21313212313097. The next prime is 21313212313147. The reversal of 21313212313102 is 20131321231312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171880744399 + ... + 171880744522.

It is an arithmetic number, because the mean of its divisors is an integer number (4125137867064).

Almost surely, 2^{21313212313102} is an apocalyptic number.

21313212313102 is a deficient number, since it is larger than the sum of its proper divisors (11687890623410).

21313212313102 is a wasteful number, since it uses less digits than its factorization.

21313212313102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343761488954.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21313212313102 its reverse (20131321231312), we get a palindrome (41444533544414).

It can be divided in two parts, 2131321231310 and 2, that added together give a palindrome (2131321231312).

The spelling of 21313212313102 in words is "twenty-one trillion, three hundred thirteen billion, two hundred twelve million, three hundred thirteen thousand, one hundred two".