21313002123202 has 8 divisors (see below), whose sum is σ = 32286032919612. Its totient is φ = 10550991150000.

The previous prime is 21313002123173. The next prime is 21313002123223. The reversal of 21313002123202 is 20232120031312.

It can be written as a sum of positive squares in 2 ways, for example, as 15541721405401 + 5771280717801 = 3942299^2 + 2402349^2 .

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

It is a super-2 number, since 2×21313002123202² (a number of 27 digits) contains 22 as substring.

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, 52754955549 + ... + 52754955952.

Almost surely, 2^{21313002123202} is an apocalyptic number.

21313002123202 is a deficient number, since it is larger than the sum of its proper divisors (10973030796410).

21313002123202 is a wasteful number, since it uses less digits than its factorization.

21313002123202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105509911604.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21313002123202 its reverse (20232120031312), we get a palindrome (41545122154514).

The spelling of 21313002123202 in words is "twenty-one trillion, three hundred thirteen billion, two million, one hundred twenty-three thousand, two hundred two".