1310123121103 has 4 divisors (see below), whose sum is σ = 1311172060000. Its totient is φ = 1309074182208.

The previous prime is 1310123121091. The next prime is 1310123121107. The reversal of 1310123121103 is 3011213210131.

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 1310123121103 - 2¹³ = 1310123112911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310123121107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524467575 + ... + 524470072.

It is an arithmetic number, because the mean of its divisors is an integer number (327793015000).

Almost surely, 2^{1310123121103} is an apocalyptic number.

1310123121103 is a deficient number, since it is larger than the sum of its proper divisors (1048938897).

1310123121103 is a wasteful number, since it uses less digits than its factorization.

1310123121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048938896.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1310123121103 its reverse (3011213210131), we get a palindrome (4321336331234).

The spelling of 1310123121103 in words is "one trillion, three hundred ten billion, one hundred twenty-three million, one hundred twenty-one thousand, one hundred three".