12100402143 has 48 divisors (see below), whose sum is σ = 19264886784. Its totient is φ = 7293464640.

The previous prime is 12100402123. The next prime is 12100402147. The reversal of 12100402143 is 34120400121.

12100402143 is a `hidden beast` number, since 121 + 0 + 0 + 402 + 143 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-12100402143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100402147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 254005 + ... + 297857.

It is an arithmetic number, because the mean of its divisors is an integer number (401351808).

Almost surely, 2^12100402143 is an apocalyptic number.

12100402143 is a deficient number, since it is larger than the sum of its proper divisors (7164484641).

12100402143 is a wasteful number, since it uses less digits than its factorization.

12100402143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43956 (or 43953 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12100402143 its reverse (34120400121), we get a palindrome (46220802264).

The spelling of 12100402143 in words is "twelve billion, one hundred million, four hundred two thousand, one hundred forty-three".