1233421242321 has 8 divisors (see below), whose sum is σ = 1644578200384. Its totient is φ = 822272556240.

The previous prime is 1233421242311. The next prime is 1233421242323. The reversal of 1233421242321 is 1232421243321.

It is a happy number.

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

It is not a de Polignac number, because 1233421242321 - 2⁹ = 1233421241809 is a prime.

It is a super-2 number, since 2×1233421242321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233421242323) 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, 1711285 + ... + 2322786.

It is an arithmetic number, because the mean of its divisors is an integer number (205572275048).

Almost surely, 2^{1233421242321} is an apocalyptic number.

It is an amenable number.

1233421242321 is a deficient number, since it is larger than the sum of its proper divisors (411156958063).

1233421242321 is a wasteful number, since it uses less digits than its factorization.

1233421242321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4135991.

The product of its digits is 13824, while the sum is 30.

Adding to 1233421242321 its reverse (1232421243321), we get a palindrome (2465842485642).

The spelling of 1233421242321 in words is "one trillion, two hundred thirty-three billion, four hundred twenty-one million, two hundred forty-two thousand, three hundred twenty-one".