1234242421321 has 8 divisors (see below), whose sum is σ = 1519067595584. Its totient is φ = 976543454160.

The previous prime is 1234242421283. The next prime is 1234242421361. The reversal of 1234242421321 is 1231242424321.

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 1234242421321 - 2²⁵ = 1234208866889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234242421361) 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, 6781551675 + ... + 6781551856.

It is an arithmetic number, because the mean of its divisors is an integer number (189883449448).

Almost surely, 2^{1234242421321} is an apocalyptic number.

It is an amenable number.

1234242421321 is a deficient number, since it is larger than the sum of its proper divisors (284825174263).

1234242421321 is a wasteful number, since it uses less digits than its factorization.

1234242421321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13563103551.

The product of its digits is 18432, while the sum is 31.

Adding to 1234242421321 its reverse (1231242424321), we get a palindrome (2465484845642).

The spelling of 1234242421321 in words is "one trillion, two hundred thirty-four billion, two hundred forty-two million, four hundred twenty-one thousand, three hundred twenty-one".