12131133103 has 4 divisors (see below), whose sum is σ = 12159948568. Its totient is φ = 12102317640.

The previous prime is 12131133101. The next prime is 12131133127. The reversal of 12131133103 is 30133113121.

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 12131133103 - 2¹ = 12131133101 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 (12131133101) 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, 14407101 + ... + 14407942.

It is an arithmetic number, because the mean of its divisors is an integer number (3039987142).

Almost surely, 2^12131133103 is an apocalyptic number.

12131133103 is a deficient number, since it is larger than the sum of its proper divisors (28815465).

12131133103 is an equidigital number, since it uses as much as digits as its factorization.

12131133103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28815464.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 12131133103 its reverse (30133113121), we get a palindrome (42264246224).

The spelling of 12131133103 in words is "twelve billion, one hundred thirty-one million, one hundred thirty-three thousand, one hundred three".