1011442231 has 4 divisors (see below), whose sum is σ = 1011514464. Its totient is φ = 1011370000.

The previous prime is 1011442171. The next prime is 1011442241. The reversal of 1011442231 is 1322441101.

1011442231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1011442231 - 2⁹ = 1011441719 is a prime.

It is a super-2 number, since 2×1011442231² = 2046030773300514722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011442199 and 1011442208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011442241) 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, 7615 + ... + 45616.

It is an arithmetic number, because the mean of its divisors is an integer number (252878616).

Almost surely, 2^1011442231 is an apocalyptic number.

1011442231 is a deficient number, since it is larger than the sum of its proper divisors (72233).

1011442231 is an equidigital number, since it uses as much as digits as its factorization.

1011442231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72232.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1011442231 is about 31803.1795737470. The cubic root of 1011442231 is about 1003.7996215906.

Adding to 1011442231 its reverse (1322441101), we get a palindrome (2333883332).

The spelling of 1011442231 in words is "one billion, eleven million, four hundred forty-two thousand, two hundred thirty-one".