2043020889121 has 4 divisors (see below), whose sum is σ = 2065976180100. Its totient is φ = 2020065598144.

The previous prime is 2043020889079. The next prime is 2043020889157. The reversal of 2043020889121 is 1219880203402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 588189294225 + 1454831594896 = 766935^2 + 1206164^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043020889121 - 2⁹ = 2043020888609 is a prime.

It is a super-2 number, since 2×2043020889121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043020883121) 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, 11477645356 + ... + 11477645533.

It is an arithmetic number, because the mean of its divisors is an integer number (516494045025).

Almost surely, 2^{2043020889121} is an apocalyptic number.

It is an amenable number.

2043020889121 is a deficient number, since it is larger than the sum of its proper divisors (22955290979).

2043020889121 is an equidigital number, since it uses as much as digits as its factorization.

2043020889121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22955290978.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 2043020889121 in words is "two trillion, forty-three billion, twenty million, eight hundred eighty-nine thousand, one hundred twenty-one".