12031301011 has 4 divisors (see below), whose sum is σ = 12664527400. Its totient is φ = 11398074624.

The previous prime is 12031300997. The next prime is 12031301017. The reversal of 12031301011 is 11010313021.

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 12031301011 - 2¹⁵ = 12031268243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031300982 and 12031301000.

It is not an unprimeable number, because it can be changed into a prime (12031301017) 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, 316613166 + ... + 316613203.

It is an arithmetic number, because the mean of its divisors is an integer number (3166131850).

Almost surely, 2^12031301011 is an apocalyptic number.

12031301011 is a deficient number, since it is larger than the sum of its proper divisors (633226389).

12031301011 is an equidigital number, since it uses as much as digits as its factorization.

12031301011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633226388.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 12031301011 its reverse (11010313021), we get a palindrome (23041614032).

It can be divided in two parts, 120313010 and 11, that added together give a palindrome (120313021).

The spelling of 12031301011 in words is "twelve billion, thirty-one million, three hundred one thousand, eleven".