1011716231 has 4 divisors (see below), whose sum is σ = 1011781200. Its totient is φ = 1011651264.

The previous prime is 1011716221. The next prime is 1011716267. The reversal of 1011716231 is 1326171101.

It is a happy number.

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 1011716231 - 2²² = 1007521927 is a prime.

It is a super-2 number, since 2×1011716231² = 2047139464137690722, 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 = 1011716197 and 1011716206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011716201) 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, 6350 + ... + 45428.

It is an arithmetic number, because the mean of its divisors is an integer number (252945300).

Almost surely, 2^1011716231 is an apocalyptic number.

1011716231 is a deficient number, since it is larger than the sum of its proper divisors (64969).

1011716231 is an equidigital number, since it uses as much as digits as its factorization.

1011716231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64968.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 1011716231 is about 31807.4870274280. The cubic root of 1011716231 is about 1003.8902566117.

Adding to 1011716231 its reverse (1326171101), we get a palindrome (2337887332).

The spelling of 1011716231 in words is "one billion, eleven million, seven hundred sixteen thousand, two hundred thirty-one".