213203023121320 has 16 divisors (see below), whose sum is σ = 479706802023060. Its totient is φ = 85281209248512.

The previous prime is 213203023121287. The next prime is 213203023121377. The reversal of 213203023121320 is 23121320302312.

It can be written as a sum of positive squares in 2 ways, for example, as 213179914865124 + 23108256196 = 14600682^2 + 152014^2 .

It is a super-2 number, since 2×213203023121320² (a number of 29 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, 2665037788977 + ... + 2665037789056.

Almost surely, 2^{213203023121320} is an apocalyptic number.

213203023121320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213203023121320 is an abundant number, since it is smaller than the sum of its proper divisors (266503778901740).

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

213203023121320 is a wasteful number, since it uses less digits than its factorization.

213203023121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330075578044 (or 5330075578040 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 213203023121320 its reverse (23121320302312), we get a palindrome (236324343423632).

The spelling of 213203023121320 in words is "two hundred thirteen trillion, two hundred three billion, twenty-three million, one hundred twenty-one thousand, three hundred twenty".