1323011111012 has 12 divisors (see below), whose sum is σ = 2328060989436. Its totient is φ = 657850828320.

The previous prime is 1323011110999. The next prime is 1323011111039. The reversal of 1323011111012 is 2101111103231.

It can be written as a sum of positive squares in 2 ways, for example, as 34023278116 + 1288987832896 = 184454^2 + 1135336^2 .

It is a super-2 number, since 2×1323011111012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913680983 + ... + 913682430.

It is an arithmetic number, because the mean of its divisors is an integer number (194005082453).

Almost surely, 2^{1323011111012} is an apocalyptic number.

It is an amenable number.

1323011111012 is a deficient number, since it is larger than the sum of its proper divisors (1005049878424).

1323011111012 is a wasteful number, since it uses less digits than its factorization.

1323011111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827363598 (or 1827363596 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1323011111012 its reverse (2101111103231), we get a palindrome (3424122214243).

The spelling of 1323011111012 in words is "one trillion, three hundred twenty-three billion, eleven million, one hundred eleven thousand, twelve".