2303213132021 has 8 divisors (see below), whose sum is σ = 2443074537240. Its totient is φ = 2163838202368.

The previous prime is 2303213131997. The next prime is 2303213132047. The reversal of 2303213132021 is 1202313123032.

It can be written as a sum of positive squares in 4 ways, for example, as 84346680625 + 2218866451396 = 290425^2 + 1489586^2 .

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-2303213132021 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 (2303213132081) 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, 121609136 + ... + 121628073.

It is an arithmetic number, because the mean of its divisors is an integer number (305384317155).

Almost surely, 2^{2303213132021} is an apocalyptic number.

It is an amenable number.

2303213132021 is a deficient number, since it is larger than the sum of its proper divisors (139861405219).

2303213132021 is a wasteful number, since it uses less digits than its factorization.

2303213132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243237783.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2303213132021 its reverse (1202313123032), we get a palindrome (3505526255053).

The spelling of 2303213132021 in words is "two trillion, three hundred three billion, two hundred thirteen million, one hundred thirty-two thousand, twenty-one".