2123202021301 has 4 divisors (see below), whose sum is σ = 2138699846412. Its totient is φ = 2107704196192.

The previous prime is 2123202021253. The next prime is 2123202021329. The reversal of 2123202021301 is 1031202023212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1655584023025 + 467617998276 = 1286695^2 + 683826^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123202021301 - 2³¹ = 2121054537653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123202061301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7748912350 + ... + 7748912623.

It is an arithmetic number, because the mean of its divisors is an integer number (534674961603).

Almost surely, 2^{2123202021301} is an apocalyptic number.

It is an amenable number.

2123202021301 is a deficient number, since it is larger than the sum of its proper divisors (15497825111).

2123202021301 is a wasteful number, since it uses less digits than its factorization.

2123202021301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15497825110.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2123202021301 its reverse (1031202023212), we get a palindrome (3154404044513).

The spelling of 2123202021301 in words is "two trillion, one hundred twenty-three billion, two hundred two million, twenty-one thousand, three hundred one".