1040310221 has 4 divisors (see below), whose sum is σ = 1040540832. Its totient is φ = 1040079612.

The previous prime is 1040310203. The next prime is 1040310233. The reversal of 1040310221 is 1220130401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1040310221 - 2¹⁸ = 1040048077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040310196 and 1040310205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040310251) 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, 108401 + ... + 117606.

It is an arithmetic number, because the mean of its divisors is an integer number (260135208).

Almost surely, 2^1040310221 is an apocalyptic number.

It is an amenable number.

1040310221 is a deficient number, since it is larger than the sum of its proper divisors (230611).

1040310221 is an equidigital number, since it uses as much as digits as its factorization.

1040310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230610.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1040310221 is about 32253.8404069965. The cubic root of 1040310221 is about 1013.2601320501.

Adding to 1040310221 its reverse (1220130401), we get a palindrome (2260440622).

The spelling of 1040310221 in words is "one billion, forty million, three hundred ten thousand, two hundred twenty-one".