2123041040 has 20 divisors (see below), whose sum is σ = 4936070604. Its totient is φ = 849216384.

The previous prime is 2123040991. The next prime is 2123041043. The reversal of 2123041040 is 401403212.

It can be written as a sum of positive squares in 2 ways, for example, as 773507344 + 1349533696 = 27812^2 + 36736^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (2123041043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13268927 + ... + 13269086.

Almost surely, 2^2123041040 is an apocalyptic number.

2123041040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123041040 is an abundant number, since it is smaller than the sum of its proper divisors (2813029564).

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

2123041040 is a wasteful number, since it uses less digits than its factorization.

2123041040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26538026 (or 26538020 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2123041040 is about 46076.4694828065. The cubic root of 2123041040 is about 1285.2456120822.

Adding to 2123041040 its reverse (401403212), we get a palindrome (2524444252).

The spelling of 2123041040 in words is "two billion, one hundred twenty-three million, forty-one thousand, forty".