2120211313331 has 4 divisors (see below), whose sum is σ = 2120552683464. Its totient is φ = 2119869943200.

The previous prime is 2120211313313. The next prime is 2120211313343. The reversal of 2120211313331 is 1333131120212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120211313331 - 2⁶ = 2120211313267 is a prime.

It is a super-2 number, since 2×2120211313331² (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 = 2120211313297 and 2120211313306.

It is not an unprimeable number, because it can be changed into a prime (2120211313361) 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 3 ways as a sum of consecutive naturals, for example, 170675750 + ... + 170688171.

It is an arithmetic number, because the mean of its divisors is an integer number (530138170866).

Almost surely, 2^{2120211313331} is an apocalyptic number.

2120211313331 is a deficient number, since it is larger than the sum of its proper divisors (341370133).

2120211313331 is an equidigital number, since it uses as much as digits as its factorization.

2120211313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341370132.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2120211313331 its reverse (1333131120212), we get a palindrome (3453342433543).

The spelling of 2120211313331 in words is "two trillion, one hundred twenty billion, two hundred eleven million, three hundred thirteen thousand, three hundred thirty-one".