2121031130333 has 4 divisors (see below), whose sum is σ = 2189451489408. Its totient is φ = 2052610771260.

The previous prime is 2121031130329. The next prime is 2121031130347. The reversal of 2121031130333 is 3330311301212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2121031130333 - 2² = 2121031130329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121031130299 and 2121031130308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121031130363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34210179491 + ... + 34210179552.

It is an arithmetic number, because the mean of its divisors is an integer number (547362872352).

Almost surely, 2^{2121031130333} is an apocalyptic number.

It is an amenable number.

2121031130333 is a deficient number, since it is larger than the sum of its proper divisors (68420359075).

2121031130333 is an equidigital number, since it uses as much as digits as its factorization.

2121031130333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68420359074.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 2121031130333 its reverse (3330311301212), we get a palindrome (5451342431545).

The spelling of 2121031130333 in words is "two trillion, one hundred twenty-one billion, thirty-one million, one hundred thirty thousand, three hundred thirty-three".