2021230131112 has 16 divisors (see below), whose sum is σ = 3920489478900. Its totient is φ = 975766270080.

The previous prime is 2021230131061. The next prime is 2021230131149. The reversal of 2021230131112 is 2111310321202.

It can be written as a sum of positive squares in 2 ways, for example, as 1923064468516 + 98165662596 = 1386746^2 + 313314^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2021230131112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4356099189 + ... + 4356099652.

Almost surely, 2^{2021230131112} is an apocalyptic number.

It is an amenable number.

2021230131112 is a deficient number, since it is larger than the sum of its proper divisors (1899259347788).

2021230131112 is a wasteful number, since it uses less digits than its factorization.

2021230131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8712198876 (or 8712198872 counting only the distinct ones).

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

Adding to 2021230131112 its reverse (2111310321202), we get a palindrome (4132540452314).

The spelling of 2021230131112 in words is "two trillion, twenty-one billion, two hundred thirty million, one hundred thirty-one thousand, one hundred twelve".