2123210031143 has 4 divisors (see below), whose sum is σ = 2138707914720. Its totient is φ = 2107712147568.

The previous prime is 2123210031139. The next prime is 2123210031247. The reversal of 2123210031143 is 3411300123212.

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 2123210031143 - 2² = 2123210031139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123210031133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7748941583 + ... + 7748941856.

It is an arithmetic number, because the mean of its divisors is an integer number (534676978680).

Almost surely, 2^{2123210031143} is an apocalyptic number.

2123210031143 is a deficient number, since it is larger than the sum of its proper divisors (15497883577).

2123210031143 is a wasteful number, since it uses less digits than its factorization.

2123210031143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15497883576.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2123210031143 its reverse (3411300123212), we get a palindrome (5534510154355).

The spelling of 2123210031143 in words is "two trillion, one hundred twenty-three billion, two hundred ten million, thirty-one thousand, one hundred forty-three".