2121003340131 has 8 divisors (see below), whose sum is σ = 3045543257680. Its totient is φ = 1305232824672.

The previous prime is 2121003340111. The next prime is 2121003340133. The reversal of 2121003340131 is 1310433001212.

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

It is not a de Polignac number, because 2121003340131 - 2¹⁹ = 2121002815843 is a prime.

It is a super-2 number, since 2×2121003340131² (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 = 2121003340098 and 2121003340107.

It is not an unprimeable number, because it can be changed into a prime (2121003340133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27192350476 + ... + 27192350553.

It is an arithmetic number, because the mean of its divisors is an integer number (380692907210).

Almost surely, 2^{2121003340131} is an apocalyptic number.

2121003340131 is a deficient number, since it is larger than the sum of its proper divisors (924539917549).

2121003340131 is a wasteful number, since it uses less digits than its factorization.

2121003340131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54384701045.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2121003340131 its reverse (1310433001212), we get a palindrome (3431436341343).

The spelling of 2121003340131 in words is "two trillion, one hundred twenty-one billion, three million, three hundred forty thousand, one hundred thirty-one".