223303320240021 has 32 divisors (see below), whose sum is σ = 378591305753600. Its totient is φ = 127429228868400.

The previous prime is 223303320239963. The next prime is 223303320240043. The reversal of 223303320240021 is 120042023303322.

223303320240021 is a `hidden beast` number, since 2 + 2 + 3 + 3 + 0 + 33 + 202 + 400 + 21 = 666.

It is not a de Polignac number, because 223303320240021 - 2¹⁴ = 223303320223637 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223303320242021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 799250755 + ... + 799530096.

It is an arithmetic number, because the mean of its divisors is an integer number (11830978304800).

Almost surely, 2^{223303320240021} is an apocalyptic number.

223303320240021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

223303320240021 is a deficient number, since it is larger than the sum of its proper divisors (155287985513579).

223303320240021 is a wasteful number, since it uses less digits than its factorization.

223303320240021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598781606 (or 1598781600 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 223303320240021 its reverse (120042023303322), we get a palindrome (343345343543343).

The spelling of 223303320240021 in words is "two hundred twenty-three trillion, three hundred three billion, three hundred twenty million, two hundred forty thousand, twenty-one".