2123201212043 has 8 divisors (see below), whose sum is σ = 2168616212112. Its totient is φ = 2078189901216.

The previous prime is 2123201212001. The next prime is 2123201212051. The reversal of 2123201212043 is 3402121023212.

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 2123201212043 - 2²⁰ = 2123200163467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123201212063) 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, 100911680 + ... + 100932717.

It is an arithmetic number, because the mean of its divisors is an integer number (271077026514).

Almost surely, 2^{2123201212043} is an apocalyptic number.

2123201212043 is a deficient number, since it is larger than the sum of its proper divisors (45415000069).

2123201212043 is a wasteful number, since it uses less digits than its factorization.

2123201212043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201844621.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2123201212043 its reverse (3402121023212), we get a palindrome (5525322235255).

The spelling of 2123201212043 in words is "two trillion, one hundred twenty-three billion, two hundred one million, two hundred twelve thousand, forty-three".