12001343402331 has 12 divisors (see below), whose sum is σ = 17594009234152. Its totient is φ = 7881479248896.

The previous prime is 12001343402329. The next prime is 12001343402333. The reversal of 12001343402331 is 13320434310021.

It is a happy number.

12001343402331 is a `hidden beast` number, since 1 + 200 + 1 + 3 + 434 + 0 + 23 + 3 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (12001343402329) and next prime (12001343402333).

It is not a de Polignac number, because 12001343402331 - 2¹ = 12001343402329 is a prime.

It is a super-2 number, since 2×12001343402331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001343402295 and 12001343402304.

It is not an unprimeable number, because it can be changed into a prime (12001343402333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9951362086 + ... + 9951363291.

Almost surely, 2^{12001343402331} is an apocalyptic number.

12001343402331 is a deficient number, since it is larger than the sum of its proper divisors (5592665831821).

12001343402331 is a wasteful number, since it uses less digits than its factorization.

12001343402331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19902725450 (or 19902725447 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 12001343402331 its reverse (13320434310021), we get a palindrome (25321777712352).

The spelling of 12001343402331 in words is "twelve trillion, one billion, three hundred forty-three million, four hundred two thousand, three hundred thirty-one".