12031211411 has 4 divisors (see below), whose sum is σ = 12446080800. Its totient is φ = 11616342024.

The previous prime is 12031211377. The next prime is 12031211429. The reversal of 12031211411 is 11411213021.

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 12031211411 - 2²⁶ = 11964102547 is a prime.

It is a super-2 number, since 2×12031211411² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12031211411.

It is not an unprimeable number, because it can be changed into a prime (12031211461) 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, 207434651 + ... + 207434708.

It is an arithmetic number, because the mean of its divisors is an integer number (3111520200).

Almost surely, 2^12031211411 is an apocalyptic number.

12031211411 is a deficient number, since it is larger than the sum of its proper divisors (414869389).

12031211411 is an equidigital number, since it uses as much as digits as its factorization.

12031211411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414869388.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12031211411 its reverse (11411213021), we get a palindrome (23442424432).

The spelling of 12031211411 in words is "twelve billion, thirty-one million, two hundred eleven thousand, four hundred eleven".