2120212031311 has 16 divisors (see below), whose sum is σ = 2454832195488. Its totient is φ = 1809776102400.

The previous prime is 2120212031303. The next prime is 2120212031339. The reversal of 2120212031311 is 1131302120212.

It is a cyclic number.

It is not a de Polignac number, because 2120212031311 - 2³ = 2120212031303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120212031381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13386870 + ... + 13544323.

It is an arithmetic number, because the mean of its divisors is an integer number (153427012218).

Almost surely, 2^{2120212031311} is an apocalyptic number.

2120212031311 is a deficient number, since it is larger than the sum of its proper divisors (334620164177).

2120212031311 is a wasteful number, since it uses less digits than its factorization.

2120212031311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26931642.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2120212031311 its reverse (1131302120212), we get a palindrome (3251514151523).

The spelling of 2120212031311 in words is "two trillion, one hundred twenty billion, two hundred twelve million, thirty-one thousand, three hundred eleven".