21031132203303 has 16 divisors (see below), whose sum is σ = 28733173459200. Its totient is φ = 13675106793920.

The previous prime is 21031132203287. The next prime is 21031132203349. The reversal of 21031132203303 is 30330223113012.

It is a cyclic number.

It is not a de Polignac number, because 21031132203303 - 2⁴ = 21031132203287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21031132203503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22530573 + ... + 23445446.

It is an arithmetic number, because the mean of its divisors is an integer number (1795823341200).

Almost surely, 2^{21031132203303} is an apocalyptic number.

21031132203303 is a deficient number, since it is larger than the sum of its proper divisors (7702041255897).

21031132203303 is a wasteful number, since it uses less digits than its factorization.

21031132203303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45979782.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21031132203303 its reverse (30330223113012), we get a palindrome (51361355316315).

The spelling of 21031132203303 in words is "twenty-one trillion, thirty-one billion, one hundred thirty-two million, two hundred three thousand, three hundred three".