1040143433451 has 4 divisors (see below), whose sum is σ = 1386857911272. Its totient is φ = 693428955632.

The previous prime is 1040143433449. The next prime is 1040143433477. The reversal of 1040143433451 is 1543343410401.

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 1040143433451 - 2¹ = 1040143433449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1040143433851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173357238906 + ... + 173357238911.

It is an arithmetic number, because the mean of its divisors is an integer number (346714477818).

Almost surely, 2^{1040143433451} is an apocalyptic number.

1040143433451 is a deficient number, since it is larger than the sum of its proper divisors (346714477821).

1040143433451 is an equidigital number, since it uses as much as digits as its factorization.

1040143433451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346714477820.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 1040143433451 its reverse (1543343410401), we get a palindrome (2583486843852).

The spelling of 1040143433451 in words is "one trillion, forty billion, one hundred forty-three million, four hundred thirty-three thousand, four hundred fifty-one".