12431020011 has 8 divisors (see below), whose sum is σ = 16670501520. Its totient is φ = 8239442592.

The previous prime is 12431020003. The next prime is 12431020033. The reversal of 12431020011 is 11002013421.

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

It is not a de Polignac number, because 12431020011 - 2³ = 12431020003 is a prime.

It is a super-3 number, since 3×12431020011³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12431020111) 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, 11975416 + ... + 11976453.

It is an arithmetic number, because the mean of its divisors is an integer number (2083812690).

Almost surely, 2^12431020011 is an apocalyptic number.

12431020011 is a deficient number, since it is larger than the sum of its proper divisors (4239481509).

12431020011 is a wasteful number, since it uses less digits than its factorization.

12431020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23952045.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12431020011 its reverse (11002013421), we get a palindrome (23433033432).

The spelling of 12431020011 in words is "twelve billion, four hundred thirty-one million, twenty thousand, eleven".