2143123142011 has 8 divisors (see below), whose sum is σ = 2212277326848. Its totient is φ = 2073970281000.

The previous prime is 2143123142003. The next prime is 2143123142137. The reversal of 2143123142011 is 1102413213412.

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 2143123142011 - 2³ = 2143123142003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143123148011) 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, 3763146 + ... + 4295056.

It is an arithmetic number, because the mean of its divisors is an integer number (276534665856).

Almost surely, 2^{2143123142011} is an apocalyptic number.

2143123142011 is a deficient number, since it is larger than the sum of its proper divisors (69154184837).

2143123142011 is a wasteful number, since it uses less digits than its factorization.

2143123142011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661913.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 2143123142011 its reverse (1102413213412), we get a palindrome (3245536355423).

The spelling of 2143123142011 in words is "two trillion, one hundred forty-three billion, one hundred twenty-three million, one hundred forty-two thousand, eleven".