2121361252326 has 24 divisors (see below), whose sum is σ = 4631368846104. Its totient is φ = 701722550880.

The previous prime is 2121361252279. The next prime is 2121361252327. The reversal of 2121361252326 is 6232521631212.

2121361252326 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 3 + 612 + 5 + 2 + 32 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121361252327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 449819791 + ... + 449824506.

It is an arithmetic number, because the mean of its divisors is an integer number (192973701921).

Almost surely, 2^{2121361252326} is an apocalyptic number.

2121361252326 is an abundant number, since it is smaller than the sum of its proper divisors (2510007593778).

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

2121361252326 is a wasteful number, since it uses less digits than its factorization.

2121361252326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899644436 (or 899644433 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

Adding to 2121361252326 its reverse (6232521631212), we get a palindrome (8353882883538).

The spelling of 2121361252326 in words is "two trillion, one hundred twenty-one billion, three hundred sixty-one million, two hundred fifty-two thousand, three hundred twenty-six".