2121300013231 has 8 divisors (see below), whose sum is σ = 2424353310720. Its totient is φ = 1818249325368.

The previous prime is 2121300013229. The next prime is 2121300013253. The reversal of 2121300013231 is 1323100031212.

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

It is not a de Polignac number, because 2121300013231 - 2¹ = 2121300013229 is a prime.

It is a super-2 number, since 2×2121300013231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121300013199 and 2121300013208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121300023231) 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, 1614690 + ... + 2617216.

It is an arithmetic number, because the mean of its divisors is an integer number (303044163840).

Almost surely, 2^{2121300013231} is an apocalyptic number.

2121300013231 is a deficient number, since it is larger than the sum of its proper divisors (303053297489).

2121300013231 is a wasteful number, since it uses less digits than its factorization.

2121300013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304813.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2121300013231 its reverse (1323100031212), we get a palindrome (3444400044443).

The spelling of 2121300013231 in words is "two trillion, one hundred twenty-one billion, three hundred million, thirteen thousand, two hundred thirty-one".