1011244231 has 8 divisors (see below), whose sum is σ = 1020446720. Its totient is φ = 1002061368.

The previous prime is 1011244217. The next prime is 1011244249. The reversal of 1011244231 is 1324421101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011244231 - 2⁷ = 1011244103 is a prime.

It is a super-2 number, since 2×1011244231² = 2045229789461562722, 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 = 1011244199 and 1011244208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011244261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110800 + ... + 119578.

It is an arithmetic number, because the mean of its divisors is an integer number (127555840).

Almost surely, 2^1011244231 is an apocalyptic number.

1011244231 is a deficient number, since it is larger than the sum of its proper divisors (9202489).

1011244231 is an equidigital number, since it uses as much as digits as its factorization.

1011244231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9813.

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

The square root of 1011244231 is about 31800.0665250876. The cubic root of 1011244231 is about 1003.7341160218.

Adding to 1011244231 its reverse (1324421101), we get a palindrome (2335665332).

The spelling of 1011244231 in words is "one billion, eleven million, two hundred forty-four thousand, two hundred thirty-one".