2123203214321 has 8 divisors (see below), whose sum is σ = 2432920384320. Its totient is φ = 1815086650608.

The previous prime is 2123203214287. The next prime is 2123203214323. The reversal of 2123203214321 is 1234123023212.

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

It is a de Polignac number, because none of the positive numbers 2^k-2123203214321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123203214323) 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, 400148726 + ... + 400154031.

It is an arithmetic number, because the mean of its divisors is an integer number (304115048040).

Almost surely, 2^{2123203214321} is an apocalyptic number.

It is an amenable number.

2123203214321 is a deficient number, since it is larger than the sum of its proper divisors (309717169999).

2123203214321 is an equidigital number, since it uses as much as digits as its factorization.

2123203214321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800303143.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 2123203214321 its reverse (1234123023212), we get a palindrome (3357326237533).

The spelling of 2123203214321 in words is "two trillion, one hundred twenty-three billion, two hundred three million, two hundred fourteen thousand, three hundred twenty-one".