12131021323103 has 8 divisors (see below), whose sum is σ = 12550293472800. Its totient is φ = 11711813244768.

The previous prime is 12131021323093. The next prime is 12131021323121. The reversal of 12131021323103 is 30132312013121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12131021323103 - 2⁶ = 12131021323039 is a prime.

It is a super-3 number, since 3×12131021323103³ (a number of 40 digits) contains 333 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 (12131021323133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15632468 + ... + 16390121.

It is an arithmetic number, because the mean of its divisors is an integer number (1568786684100).

Almost surely, 2^{12131021323103} is an apocalyptic number.

12131021323103 is a deficient number, since it is larger than the sum of its proper divisors (419272149697).

12131021323103 is a wasteful number, since it uses less digits than its factorization.

12131021323103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32035681.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12131021323103 its reverse (30132312013121), we get a palindrome (42263333336224).

The spelling of 12131021323103 in words is "twelve trillion, one hundred thirty-one billion, twenty-one million, three hundred twenty-three thousand, one hundred three".