2123231110423 has 8 divisors (see below), whose sum is σ = 2168524320768. Its totient is φ = 2077942820184.

The previous prime is 2123231110397. The next prime is 2123231110463. The reversal of 2123231110423 is 3240111323212.

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-2123231110423 is a prime.

It is a super-2 number, since 2×2123231110423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123231110463) 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, 351111 + ... + 2090392.

It is an arithmetic number, because the mean of its divisors is an integer number (271065540096).

Almost surely, 2^{2123231110423} is an apocalyptic number.

2123231110423 is a deficient number, since it is larger than the sum of its proper divisors (45293210345).

2123231110423 is a wasteful number, since it uses less digits than its factorization.

2123231110423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460053.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 2123231110423 its reverse (3240111323212), we get a palindrome (5363342433635).

The spelling of 2123231110423 in words is "two trillion, one hundred twenty-three billion, two hundred thirty-one million, one hundred ten thousand, four hundred twenty-three".