2011213310331 has 4 divisors (see below), whose sum is σ = 2681617747112. Its totient is φ = 1340808873552.

The previous prime is 2011213310329. The next prime is 2011213310347. The reversal of 2011213310331 is 1330133121102.

It is a happy number.

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

It is not a de Polignac number, because 2011213310331 - 2¹ = 2011213310329 is a prime.

It is a super-2 number, since 2×2011213310331² (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 = 2011213310298 and 2011213310307.

It is not an unprimeable number, because it can be changed into a prime (2011213310311) 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, 335202218386 + ... + 335202218391.

It is an arithmetic number, because the mean of its divisors is an integer number (670404436778).

Almost surely, 2^{2011213310331} is an apocalyptic number.

2011213310331 is a deficient number, since it is larger than the sum of its proper divisors (670404436781).

2011213310331 is an equidigital number, since it uses as much as digits as its factorization.

2011213310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670404436780.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 2011213310331 its reverse (1330133121102), we get a palindrome (3341346431433).

The spelling of 2011213310331 in words is "two trillion, eleven billion, two hundred thirteen million, three hundred ten thousand, three hundred thirty-one".