1320010111123 has 16 divisors (see below), whose sum is σ = 1474836143616. Its totient is φ = 1171038889440.

The previous prime is 1320010111093. The next prime is 1320010111127. The reversal of 1320010111123 is 3211110100231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1320010111123 - 2⁹ = 1320010110611 is a prime.

It is a super-2 number, since 2×1320010111123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320010111097 and 1320010111106.

It is not an unprimeable number, because it can be changed into a prime (1320010111127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743340 + ... + 1786777.

It is an arithmetic number, because the mean of its divisors is an integer number (92177258976).

Almost surely, 2^{1320010111123} is an apocalyptic number.

1320010111123 is a deficient number, since it is larger than the sum of its proper divisors (154826032493).

1320010111123 is a wasteful number, since it uses less digits than its factorization.

1320010111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531274.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1320010111123 its reverse (3211110100231), we get a palindrome (4531120211354).

The spelling of 1320010111123 in words is "one trillion, three hundred twenty billion, ten million, one hundred eleven thousand, one hundred twenty-three".