2040442123243 has 32 divisors (see below), whose sum is σ = 2271466137600. Its totient is φ = 1824945292800.

The previous prime is 2040442123241. The next prime is 2040442123249. The reversal of 2040442123243 is 3423212440402.

It is a cyclic number.

It is not a de Polignac number, because 2040442123243 - 2¹ = 2040442123241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040442123241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20744403 + ... + 20842531.

It is an arithmetic number, because the mean of its divisors is an integer number (70983316800).

Almost surely, 2^{2040442123243} is an apocalyptic number.

2040442123243 is a deficient number, since it is larger than the sum of its proper divisors (231024014357).

2040442123243 is a wasteful number, since it uses less digits than its factorization.

2040442123243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99043.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 2040442123243 its reverse (3423212440402), we get a palindrome (5463654563645).

The spelling of 2040442123243 in words is "two trillion, forty billion, four hundred forty-two million, one hundred twenty-three thousand, two hundred forty-three".