1323131113103 has 4 divisors (see below), whose sum is σ = 1392769592760. Its totient is φ = 1253492633448.

The previous prime is 1323131113037. The next prime is 1323131113127. The reversal of 1323131113103 is 3013111313231.

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 1323131113103 - 2¹² = 1323131109007 is a prime.

It is a super-2 number, since 2×1323131113103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323131116103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34819239800 + ... + 34819239837.

It is an arithmetic number, because the mean of its divisors is an integer number (348192398190).

Almost surely, 2^{1323131113103} is an apocalyptic number.

1323131113103 is a deficient number, since it is larger than the sum of its proper divisors (69638479657).

1323131113103 is an equidigital number, since it uses as much as digits as its factorization.

1323131113103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69638479656.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1323131113103 its reverse (3013111313231), we get a palindrome (4336242426334).

The spelling of 1323131113103 in words is "one trillion, three hundred twenty-three billion, one hundred thirty-one million, one hundred thirteen thousand, one hundred three".