12051404331 has 32 divisors (see below), whose sum is σ = 16865587200. Its totient is φ = 7645881600.

The previous prime is 12051404221. The next prime is 12051404333. The reversal of 12051404331 is 13340415021.

It is a happy number.

It is not a de Polignac number, because 12051404331 - 2¹³ = 12051396139 is a prime.

It is a super-2 number, since 2×12051404331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12051404333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7779345 + ... + 7780893.

It is an arithmetic number, because the mean of its divisors is an integer number (527049600).

Almost surely, 2^12051404331 is an apocalyptic number.

12051404331 is a deficient number, since it is larger than the sum of its proper divisors (4814182869).

12051404331 is a wasteful number, since it uses less digits than its factorization.

12051404331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3107.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 12051404331 its reverse (13340415021), we get a palindrome (25391819352).

The spelling of 12051404331 in words is "twelve billion, fifty-one million, four hundred four thousand, three hundred thirty-one".