1040343203 has 4 divisors (see below), whose sum is σ = 1101539880. Its totient is φ = 979146528.

The previous prime is 1040343173. The next prime is 1040343223. The reversal of 1040343203 is 3023430401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3023430401 = 44771 ⋅67531.

It is a cyclic number.

It is not a de Polignac number, because 1040343203 - 2¹⁰ = 1040342179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040343223) 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, 30598313 + ... + 30598346.

It is an arithmetic number, because the mean of its divisors is an integer number (275384970).

Almost surely, 2^1040343203 is an apocalyptic number.

1040343203 is a deficient number, since it is larger than the sum of its proper divisors (61196677).

1040343203 is an equidigital number, since it uses as much as digits as its factorization.

1040343203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61196676.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1040343203 is about 32254.3516908959. The cubic root of 1040343203 is about 1013.2708400716.

Adding to 1040343203 its reverse (3023430401), we get a palindrome (4063773604).

The spelling of 1040343203 in words is "one billion, forty million, three hundred forty-three thousand, two hundred three".