1043321531642 has 8 divisors (see below), whose sum is σ = 1685365551156. Its totient is φ = 481533014592.

The previous prime is 1043321531641. The next prime is 1043321531657. The reversal of 1043321531642 is 2461351233401.

It can be written as a sum of positive squares in 2 ways, for example, as 1040683579321 + 2637952321 = 1020139^2 + 51361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1043321531641) 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, 20063875583 + ... + 20063875634.

Almost surely, 2^{1043321531642} is an apocalyptic number.

1043321531642 is a deficient number, since it is larger than the sum of its proper divisors (642044019514).

1043321531642 is a wasteful number, since it uses less digits than its factorization.

1043321531642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40127751232.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 1043321531642 in words is "one trillion, forty-three billion, three hundred twenty-one million, five hundred thirty-one thousand, six hundred forty-two".