1040204242331 has 4 divisors (see below), whose sum is σ = 1101392727192. Its totient is φ = 979015757472.

The previous prime is 1040204242303. The next prime is 1040204242373. The reversal of 1040204242331 is 1332424020401.

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

It is a cyclic number.

It is not a de Polignac number, because 1040204242331 - 2¹⁸ = 1040203980187 is a prime.

It is a super-2 number, since 2×1040204242331² (a number of 25 digits) contains 22 as substring.

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 1040204242331.

It is not an unprimeable number, because it can be changed into a prime (1040204242631) 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, 30594242405 + ... + 30594242438.

It is an arithmetic number, because the mean of its divisors is an integer number (275348181798).

Almost surely, 2^{1040204242331} is an apocalyptic number.

1040204242331 is a deficient number, since it is larger than the sum of its proper divisors (61188484861).

1040204242331 is an equidigital number, since it uses as much as digits as its factorization.

1040204242331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61188484860.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1040204242331 its reverse (1332424020401), we get a palindrome (2372628262732).

The spelling of 1040204242331 in words is "one trillion, forty billion, two hundred four million, two hundred forty-two thousand, three hundred thirty-one".