1320131003123 has 16 divisors (see below), whose sum is σ = 1334816301600. Its totient is φ = 1305531402240.

The previous prime is 1320131002999. The next prime is 1320131003153. The reversal of 1320131003123 is 3213001310231.

It is a cyclic number.

It is not a de Polignac number, because 1320131003123 - 2⁸ = 1320131002867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320131003095 and 1320131003104.

It is not an unprimeable number, because it can be changed into a prime (1320131003153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206622413 + ... + 206628801.

It is an arithmetic number, because the mean of its divisors is an integer number (83426018850).

Almost surely, 2^{1320131003123} is an apocalyptic number.

1320131003123 is a deficient number, since it is larger than the sum of its proper divisors (14685298477).

1320131003123 is a wasteful number, since it uses less digits than its factorization.

1320131003123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12742.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1320131003123 its reverse (3213001310231), we get a palindrome (4533132313354).

The spelling of 1320131003123 in words is "one trillion, three hundred twenty billion, one hundred thirty-one million, three thousand, one hundred twenty-three".