2121314403231 has 6 divisors (see below), whose sum is σ = 3064120804680. Its totient is φ = 1414209602148.

The previous prime is 2121314403211. The next prime is 2121314403269. The reversal of 2121314403231 is 1323044131212.

2121314403231 is a `hidden beast` number, since 2 + 1 + 2 + 13 + 14 + 403 + 231 = 666.

It is not a de Polignac number, because 2121314403231 - 2⁵ = 2121314403199 is a prime.

It is a super-2 number, since 2×2121314403231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121314403195 and 2121314403204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121314403211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117850800171 + ... + 117850800188.

It is an arithmetic number, because the mean of its divisors is an integer number (510686800780).

Almost surely, 2^{2121314403231} is an apocalyptic number.

2121314403231 is a deficient number, since it is larger than the sum of its proper divisors (942806401449).

2121314403231 is a wasteful number, since it uses less digits than its factorization.

2121314403231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235701600365 (or 235701600362 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 2121314403231 its reverse (1323044131212), we get a palindrome (3444358534443).

The spelling of 2121314403231 in words is "two trillion, one hundred twenty-one billion, three hundred fourteen million, four hundred three thousand, two hundred thirty-one".