1040020003 has 8 divisors (see below), whose sum is σ = 1183896576. Its totient is φ = 904365000.

The previous prime is 1040020001. The next prime is 1040020057. The reversal of 1040020003 is 3000200401.

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

It is not a de Polignac number, because 1040020003 - 2¹ = 1040020001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040020001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055123 + ... + 2055628.

It is an arithmetic number, because the mean of its divisors is an integer number (147987072).

Almost surely, 2^1040020003 is an apocalyptic number.

1040020003 is a deficient number, since it is larger than the sum of its proper divisors (143876573).

1040020003 is a wasteful number, since it uses less digits than its factorization.

1040020003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110785.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1040020003 is about 32249.3411250525. The cubic root of 1040020003 is about 1013.1658993643.

Adding to 1040020003 its reverse (3000200401), we get a palindrome (4040220404).

It can be divided in two parts, 10400 and 20003, that added together give a palindrome (30403).

The spelling of 1040020003 in words is "one billion, forty million, twenty thousand, three".