12023131211 has 8 divisors (see below), whose sum is σ = 14797700064. Its totient is φ = 9512807040.

The previous prime is 12023131207. The next prime is 12023131213. The reversal of 12023131211 is 11213132021.

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 12023131211 - 2² = 12023131207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12023131211.

It is not an unprimeable number, because it can be changed into a prime (12023131213) 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, 66061070 + ... + 66061251.

It is an arithmetic number, because the mean of its divisors is an integer number (1849712508).

Almost surely, 2^12023131211 is an apocalyptic number.

12023131211 is a deficient number, since it is larger than the sum of its proper divisors (2774568853).

12023131211 is a wasteful number, since it uses less digits than its factorization.

12023131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132122341.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12023131211 its reverse (11213132021), we get a palindrome (23236263232).

The spelling of 12023131211 in words is "twelve billion, twenty-three million, one hundred thirty-one thousand, two hundred eleven".