21202130132323 has 16 divisors (see below), whose sum is σ = 24260605788160. Its totient is φ = 18151066958400.

The previous prime is 21202130132317. The next prime is 21202130132341. The reversal of 21202130132323 is 32323103120212.

It is a cyclic number.

It is not a de Polignac number, because 21202130132323 - 2¹⁷ = 21202130001251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21202130135323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19902688 + ... + 20940898.

It is an arithmetic number, because the mean of its divisors is an integer number (1516287861760).

Almost surely, 2^{21202130132323} is an apocalyptic number.

21202130132323 is a deficient number, since it is larger than the sum of its proper divisors (3058475655837).

21202130132323 is a wasteful number, since it uses less digits than its factorization.

21202130132323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041778.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21202130132323 its reverse (32323103120212), we get a palindrome (53525233252535).

The spelling of 21202130132323 in words is "twenty-one trillion, two hundred two billion, one hundred thirty million, one hundred thirty-two thousand, three hundred twenty-three".