1011323033011 has 4 divisors (see below), whose sum is σ = 1011574172632. Its totient is φ = 1011071893392.

The previous prime is 1011323033003. The next prime is 1011323033023. The reversal of 1011323033011 is 1103303231101.

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 1011323033011 - 2³ = 1011323033003 is a prime.

It is a super-2 number, since 2×1011323033011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011323033011.

It is not an unprimeable number, because it can be changed into a prime (1011323036011) 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, 125563770 + ... + 125571823.

It is an arithmetic number, because the mean of its divisors is an integer number (252893543158).

Almost surely, 2^{1011323033011} is an apocalyptic number.

1011323033011 is a deficient number, since it is larger than the sum of its proper divisors (251139621).

1011323033011 is an equidigital number, since it uses as much as digits as its factorization.

1011323033011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251139620.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1011323033011 its reverse (1103303231101), we get a palindrome (2114626264112).

The spelling of 1011323033011 in words is "one trillion, eleven billion, three hundred twenty-three million, thirty-three thousand, eleven".