2123230402243 has 8 divisors (see below), whose sum is σ = 2145174517808. Its totient is φ = 2101287412224.

The previous prime is 2123230402219. The next prime is 2123230402283. The reversal of 2123230402243 is 3422040323212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123230402243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123230402213) 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 7 ways as a sum of consecutive naturals, for example, 3817855 + ... + 4338487.

It is an arithmetic number, because the mean of its divisors is an integer number (268146814726).

Almost surely, 2^{2123230402243} is an apocalyptic number.

2123230402243 is a deficient number, since it is larger than the sum of its proper divisors (21944115565).

2123230402243 is an equidigital number, since it uses as much as digits as its factorization.

2123230402243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562773.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 2123230402243 its reverse (3422040323212), we get a palindrome (5545270725455).

The spelling of 2123230402243 in words is "two trillion, one hundred twenty-three billion, two hundred thirty million, four hundred two thousand, two hundred forty-three".