12311121003 has 8 divisors (see below), whose sum is σ = 17278766400. Its totient is φ = 7775444808.

The previous prime is 12311121001. The next prime is 12311121019. The reversal of 12311121003 is 30012111321.

It is a happy number.

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

It is not a de Polignac number, because 12311121003 - 2¹ = 12311121001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12311121001) 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, 107992233 + ... + 107992346.

It is an arithmetic number, because the mean of its divisors is an integer number (2159845800).

Almost surely, 2^12311121003 is an apocalyptic number.

12311121003 is a deficient number, since it is larger than the sum of its proper divisors (4967645397).

12311121003 is a wasteful number, since it uses less digits than its factorization.

12311121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215984601.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12311121003 its reverse (30012111321), we get a palindrome (42323232324).

The spelling of 12311121003 in words is "twelve billion, three hundred eleven million, one hundred twenty-one thousand, three".