1011323611 has 4 divisors (see below), whose sum is σ = 1012188424. Its totient is φ = 1010458800.

The previous prime is 1011323609. The next prime is 1011323647. The reversal of 1011323611 is 1163231101.

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 1011323611 - 2¹ = 1011323609 is a prime.

It is a super-3 number, since 3×1011323611³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011329611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430650 + ... + 432991.

It is an arithmetic number, because the mean of its divisors is an integer number (253047106).

Almost surely, 2^1011323611 is an apocalyptic number.

1011323611 is a deficient number, since it is larger than the sum of its proper divisors (864813).

1011323611 is an equidigital number, since it uses as much as digits as its factorization.

1011323611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864812.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1011323611 is about 31801.3146111918. The cubic root of 1011323611 is about 1003.7603788266.

Adding to 1011323611 its reverse (1163231101), we get a palindrome (2174554712).

The spelling of 1011323611 in words is "one billion, eleven million, three hundred twenty-three thousand, six hundred eleven".