21623545132283 has 2 divisors, whose sum is σ = 21623545132284. Its totient is φ = 21623545132282.

The previous prime is 21623545132279. The next prime is 21623545132297. The reversal of 21623545132283 is 38223154532612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21623545132283 - 2² = 21623545132279 is a prime.

It is not a weakly prime, because it can be changed into another prime (21623545132883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10811772566141 + 10811772566142.

It is an arithmetic number, because the mean of its divisors is an integer number (10811772566142).

Almost surely, 2^{21623545132283} is an apocalyptic number.

21623545132283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21623545132283 is an equidigital number, since it uses as much as digits as its factorization.

21623545132283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 47.

Adding to 21623545132283 its reverse (38223154532612), we get a palindrome (59846699664895).

The spelling of 21623545132283 in words is "twenty-one trillion, six hundred twenty-three billion, five hundred forty-five million, one hundred thirty-two thousand, two hundred eighty-three".