2123303021021 has 8 divisors (see below), whose sum is σ = 2613296025984. Its totient is φ = 1679976016560.

The previous prime is 2123303020997. The next prime is 2123303021123. The reversal of 2123303021021 is 1201203033212.

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 2123303021021 - 2⁶ = 2123303020957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123303020984 and 2123303021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123303021221) 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, 11666500025 + ... + 11666500206.

It is an arithmetic number, because the mean of its divisors is an integer number (326662003248).

Almost surely, 2^{2123303021021} is an apocalyptic number.

It is an amenable number.

2123303021021 is a deficient number, since it is larger than the sum of its proper divisors (489993004963).

2123303021021 is a wasteful number, since it uses less digits than its factorization.

2123303021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23333000251.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2123303021021 its reverse (1201203033212), we get a palindrome (3324506054233).

The spelling of 2123303021021 in words is "two trillion, one hundred twenty-three billion, three hundred three million, twenty-one thousand, twenty-one".