12021113313031 has 4 divisors (see below), whose sum is σ = 12021147863712. Its totient is φ = 12021078762352.

The previous prime is 12021113313007. The next prime is 12021113313047. The reversal of 12021113313031 is 13031331112021.

12021113313031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12021113313031 - 2¹³ = 12021113304839 is a prime.

It is a super-2 number, since 2×12021113313031² (a number of 27 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 = 12021113312993 and 12021113313011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021113313931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16748086 + ... + 17451091.

It is an arithmetic number, because the mean of its divisors is an integer number (3005286965928).

Almost surely, 2^{12021113313031} is an apocalyptic number.

12021113313031 is a deficient number, since it is larger than the sum of its proper divisors (34550681).

12021113313031 is an equidigital number, since it uses as much as digits as its factorization.

12021113313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34550680.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 12021113313031 its reverse (13031331112021), we get a palindrome (25052444425052).

It can be divided in two parts, 12021113 and 313031, that added together give a square (12334144 = 3512²).

The spelling of 12021113313031 in words is "twelve trillion, twenty-one billion, one hundred thirteen million, three hundred thirteen thousand, thirty-one".