21412424331233 has 8 divisors (see below), whose sum is σ = 23059820385000. Its totient is φ = 19765069204608.

The previous prime is 21412424331101. The next prime is 21412424331241. The reversal of 21412424331233 is 33213342421412.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12289274449 + 21400135056784 = 110857^2 + 4626028^2 .

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

It is not a de Polignac number, because 21412424331233 - 2¹⁶ = 21412424265697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21412424331193 and 21412424331202.

It is not an unprimeable number, because it can be changed into a prime (21412424330233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9140858 + ... + 11241891.

It is an arithmetic number, because the mean of its divisors is an integer number (2882477548125).

Almost surely, 2^{21412424331233} is an apocalyptic number.

It is an amenable number.

21412424331233 is a deficient number, since it is larger than the sum of its proper divisors (1647396053767).

21412424331233 is a wasteful number, since it uses less digits than its factorization.

21412424331233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20463571.

The product of its digits is 82944, while the sum is 35.

Adding to 21412424331233 its reverse (33213342421412), we get a palindrome (54625766752645).

The spelling of 21412424331233 in words is "twenty-one trillion, four hundred twelve billion, four hundred twenty-four million, three hundred thirty-one thousand, two hundred thirty-three".