1040000231 has 4 divisors (see below), whose sum is σ = 1041072264. Its totient is φ = 1038928200.

The previous prime is 1040000201. The next prime is 1040000239. The reversal of 1040000231 is 1320000401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320000401 = 587 ⋅2248723.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040000231 is a prime.

It is a super-2 number, since 2×1040000231² = 2163200960960106722, 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 (1040000239) 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, 534560 + ... + 536501.

It is an arithmetic number, because the mean of its divisors is an integer number (260268066).

Almost surely, 2^1040000231 is an apocalyptic number.

1040000231 is a deficient number, since it is larger than the sum of its proper divisors (1072033).

1040000231 is an equidigital number, since it uses as much as digits as its factorization.

1040000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072032.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1040000231 is about 32249.0345746970. The cubic root of 1040000231 is about 1013.1594788329.

Adding to 1040000231 its reverse (1320000401), we get a palindrome (2360000632).

The spelling of 1040000231 in words is "one billion, forty million, two hundred thirty-one", and thus it is an aban number.