1100023323012 has 60 divisors (see below), whose sum is σ = 2915071170396. Its totient is φ = 361651495680.

The previous prime is 1100023322999. The next prime is 1100023323029. The reversal of 1100023323012 is 2103233200011.

It can be written as a sum of positive squares in 2 ways, for example, as 578716218756 + 521307104256 = 760734^2 + 722016^2 .

It is a super-2 number, since 2×1100023323012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23230689 + ... + 23277992.

Almost surely, 2^{1100023323012} is an apocalyptic number.

1100023323012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1100023323012 is an abundant number, since it is smaller than the sum of its proper divisors (1815047847384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100023323012 is a wasteful number, since it uses less digits than its factorization.

1100023323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46508770 (or 46508759 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1100023323012 its reverse (2103233200011), we get a palindrome (3203256523023).

The spelling of 1100023323012 in words is "one trillion, one hundred billion, twenty-three million, three hundred twenty-three thousand, twelve".