12311023301 has 4 divisors (see below), whose sum is σ = 12611292204. Its totient is φ = 12010754400.

The previous prime is 12311023261. The next prime is 12311023303. The reversal of 12311023301 is 10332011321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10332011321 = 19937 ⋅518233.

It can be written as a sum of positive squares in 2 ways, for example, as 384199201 + 11926824100 = 19601^2 + 109210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12311023301 is a prime.

It is a super-2 number, since 2×12311023301² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12311023301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311023303) 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, 150134390 + ... + 150134471.

It is an arithmetic number, because the mean of its divisors is an integer number (3152823051).

Almost surely, 2^12311023301 is an apocalyptic number.

It is an amenable number.

12311023301 is a deficient number, since it is larger than the sum of its proper divisors (300268903).

12311023301 is an equidigital number, since it uses as much as digits as its factorization.

12311023301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300268902.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12311023301 its reverse (10332011321), we get a palindrome (22643034622).

The spelling of 12311023301 in words is "twelve billion, three hundred eleven million, twenty-three thousand, three hundred one".