12312020011 has 8 divisors (see below), whose sum is σ = 12620790000. Its totient is φ = 12003653760.

The previous prime is 12312020009. The next prime is 12312020027. The reversal of 12312020011 is 11002021321.

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

It is a cyclic number.

It is not a de Polignac number, because 12312020011 - 2¹ = 12312020009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12312019973 and 12312020000.

It is not an unprimeable number, because it can be changed into a prime (12312020051) 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, 38706 + ... + 161623.

It is an arithmetic number, because the mean of its divisors is an integer number (1577598750).

Almost surely, 2^12312020011 is an apocalyptic number.

12312020011 is a deficient number, since it is larger than the sum of its proper divisors (308769989).

12312020011 is a wasteful number, since it uses less digits than its factorization.

12312020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201869.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12312020011 its reverse (11002021321), we get a palindrome (23314041332).

The spelling of 12312020011 in words is "twelve billion, three hundred twelve million, twenty thousand, eleven".