12311130210121 has 4 divisors (see below), whose sum is σ = 12356896493700. Its totient is φ = 12265363926544.

The previous prime is 12311130210109. The next prime is 12311130210133. The reversal of 12311130210121 is 12101203111321.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12311130210109) and next prime (12311130210133).

It can be written as a sum of positive squares in 2 ways, for example, as 925128490896 + 11386001719225 = 961836^2 + 3374315^2 .

It is a cyclic number.

It is not a de Polignac number, because 12311130210121 - 2⁷ = 12311130209993 is a prime.

It is a super-2 number, since 2×12311130210121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311130213121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22883141386 + ... + 22883141923.

It is an arithmetic number, because the mean of its divisors is an integer number (3089224123425).

Almost surely, 2^{12311130210121} is an apocalyptic number.

It is an amenable number.

12311130210121 is a deficient number, since it is larger than the sum of its proper divisors (45766283579).

12311130210121 is an equidigital number, since it uses as much as digits as its factorization.

12311130210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45766283578.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12311130210121 its reverse (12101203111321), we get a palindrome (24412333321442).

The spelling of 12311130210121 in words is "twelve trillion, three hundred eleven billion, one hundred thirty million, two hundred ten thousand, one hundred twenty-one".