2113012231021 has 8 divisors (see below), whose sum is σ = 2183969579904. Its totient is φ = 2043138200640.

The previous prime is 2113012231013. The next prime is 2113012231037. The reversal of 2113012231021 is 1201322103112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113012231021 - 2³ = 2113012231013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113012231021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113012231321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270825660 + ... + 270833461.

It is an arithmetic number, because the mean of its divisors is an integer number (272996197488).

Almost surely, 2^{2113012231021} is an apocalyptic number.

It is an amenable number.

2113012231021 is a deficient number, since it is larger than the sum of its proper divisors (70957348883).

2113012231021 is an equidigital number, since it uses as much as digits as its factorization.

2113012231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541659251.

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

Adding to 2113012231021 its reverse (1201322103112), we get a palindrome (3314334334133).

The spelling of 2113012231021 in words is "two trillion, one hundred thirteen billion, twelve million, two hundred thirty-one thousand, twenty-one".