2121303300031 has 8 divisors (see below), whose sum is σ = 2125393136720. Its totient is φ = 2117216247552.

The previous prime is 2121303300023. The next prime is 2121303300047. The reversal of 2121303300031 is 1300033031212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121303300031 - 2³ = 2121303300023 is a prime.

It is a super-2 number, since 2×2121303300031² (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 = 2121303299981 and 2121303300008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121303300091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832456 + ... + 2221618.

It is an arithmetic number, because the mean of its divisors is an integer number (265674142090).

Almost surely, 2^{2121303300031} is an apocalyptic number.

2121303300031 is a deficient number, since it is larger than the sum of its proper divisors (4089836689).

2121303300031 is a wasteful number, since it uses less digits than its factorization.

2121303300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392105.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 2121303300031 its reverse (1300033031212), we get a palindrome (3421336331243).

The spelling of 2121303300031 in words is "two trillion, one hundred twenty-one billion, three hundred three million, three hundred thousand, thirty-one".