21423312333011 has 8 divisors (see below), whose sum is σ = 22550906371920. Its totient is φ = 20295723422592.

The previous prime is 21423312332993. The next prime is 21423312333029. The reversal of 21423312333011 is 11033321332412.

It is an interprime number because it is at equal distance from previous prime (21423312332993) and next prime (21423312333029).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21423312333011 - 2³⁴ = 21406132463827 is a prime.

It is a super-2 number, since 2×21423312333011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21423312332011) 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 7 ways as a sum of consecutive naturals, for example, 9707951 + ... + 11708583.

It is an arithmetic number, because the mean of its divisors is an integer number (2818863296490).

Almost surely, 2^{21423312333011} is an apocalyptic number.

21423312333011 is a deficient number, since it is larger than the sum of its proper divisors (1127594038909).

21423312333011 is a wasteful number, since it uses less digits than its factorization.

21423312333011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564245.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 21423312333011 its reverse (11033321332412), we get a palindrome (32456633665423).

The spelling of 21423312333011 in words is "twenty-one trillion, four hundred twenty-three billion, three hundred twelve million, three hundred thirty-three thousand, eleven".