12031013313220 has 24 divisors (see below), whose sum is σ = 27561957772608. Its totient is φ = 4374913932000.

The previous prime is 12031013313173. The next prime is 12031013313233. The reversal of 12031013313220 is 2231331013021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12031013313191 and 12031013313200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27343211856 + ... + 27343212295.

It is an arithmetic number, because the mean of its divisors is an integer number (1148414907192).

Almost surely, 2^{12031013313220} is an apocalyptic number.

12031013313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031013313220 is an abundant number, since it is smaller than the sum of its proper divisors (15530944459388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12031013313220 is a wasteful number, since it uses less digits than its factorization.

12031013313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54686424171 (or 54686424169 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12031013313220 its reverse (2231331013021), we get a palindrome (14262344326241).

The spelling of 12031013313220 in words is "twelve trillion, thirty-one billion, thirteen million, three hundred thirteen thousand, two hundred twenty".