21223233020313 has 36 divisors (see below), whose sum is σ = 33508665620560. Its totient is φ = 13404147091992.

The previous prime is 21223233020299. The next prime is 21223233020333. The reversal of 21223233020313 is 31302033232212.

21223233020313 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 323 + 3 + 0 + 20 + 313 = 666.

It is not a de Polignac number, because 21223233020313 - 2²¹ = 21223230923161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21223233020333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 85000495 + ... + 85249812.

Almost surely, 2^{21223233020313} is an apocalyptic number.

It is an amenable number.

21223233020313 is a deficient number, since it is larger than the sum of its proper divisors (12285432600247).

21223233020313 is an frugal number, since it uses more digits than its factorization.

21223233020313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170250350 (or 170250329 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21223233020313 its reverse (31302033232212), we get a palindrome (52525266252525).

The spelling of 21223233020313 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred thirty-three million, twenty thousand, three hundred thirteen".