1042803813 has 8 divisors (see below), whose sum is σ = 1390812768. Its totient is φ = 694998704.

The previous prime is 1042803803. The next prime is 1042803821. The reversal of 1042803813 is 3183082401.

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

It is a cyclic number.

It is not a de Polignac number, because 1042803813 - 2¹² = 1042799717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042803803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38595 + ... + 59792.

It is an arithmetic number, because the mean of its divisors is an integer number (173851596).

Almost surely, 2^1042803813 is an apocalyptic number.

It is an amenable number.

1042803813 is a deficient number, since it is larger than the sum of its proper divisors (348008955).

1042803813 is an equidigital number, since it uses as much as digits as its factorization.

1042803813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101923.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1042803813 is about 32292.4730084272. The cubic root of 1042803813 is about 1014.0690706464.

The spelling of 1042803813 in words is "one billion, forty-two million, eight hundred three thousand, eight hundred thirteen".