2012020331323 has 4 divisors (see below), whose sum is σ = 2012139805528. Its totient is φ = 2011900857120.

The previous prime is 2012020331281. The next prime is 2012020331341. The reversal of 2012020331323 is 3231330202102.

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 2012020331323 - 2³³ = 2003430396731 is a prime.

It is a super-2 number, since 2×2012020331323² (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 = 2012020331294 and 2012020331303.

It is not an unprimeable number, because it can be changed into a prime (2012020391323) 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, 59711838 + ... + 59745523.

It is an arithmetic number, because the mean of its divisors is an integer number (503034951382).

Almost surely, 2^{2012020331323} is an apocalyptic number.

2012020331323 is a deficient number, since it is larger than the sum of its proper divisors (119474205).

2012020331323 is a wasteful number, since it uses less digits than its factorization.

2012020331323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119474204.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2012020331323 its reverse (3231330202102), we get a palindrome (5243350533425).

The spelling of 2012020331323 in words is "two trillion, twelve billion, twenty million, three hundred thirty-one thousand, three hundred twenty-three".