1040012231 has 4 divisors (see below), whose sum is σ = 1041693000. Its totient is φ = 1038331464.

The previous prime is 1040012227. The next prime is 1040012263. The reversal of 1040012231 is 1322100401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1040012231 - 2² = 1040012227 is a prime.

It is a super-2 number, since 2×1040012231² = 2163250881259194722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040012201) 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, 839456 + ... + 840693.

It is an arithmetic number, because the mean of its divisors is an integer number (260423250).

Almost surely, 2^1040012231 is an apocalyptic number.

1040012231 is a deficient number, since it is larger than the sum of its proper divisors (1680769).

1040012231 is an equidigital number, since it uses as much as digits as its factorization.

1040012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680768.

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

The square root of 1040012231 is about 32249.2206262415. The cubic root of 1040012231 is about 1013.1633755843.

Adding to 1040012231 its reverse (1322100401), we get a palindrome (2362112632).

The spelling of 1040012231 in words is "one billion, forty million, twelve thousand, two hundred thirty-one".