1242332332421 has 4 divisors (see below), whose sum is σ = 1249771448352. Its totient is φ = 1234893216492.

The previous prime is 1242332332403. The next prime is 1242332332457.

1242332332421 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1242332332421 - 2⁶ = 1242332332357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242332332481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3719557715 + ... + 3719558048.

It is an arithmetic number, because the mean of its divisors is an integer number (312442862088).

Almost surely, 2^{1242332332421} is an apocalyptic number.

It is an amenable number.

1242332332421 is a deficient number, since it is larger than the sum of its proper divisors (7439115931).

1242332332421 is an equidigital number, since it uses as much as digits as its factorization.

1242332332421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7439115930.

The product of its digits is 41472, while the sum is 32.

The spelling of 1242332332421 in words is "one trillion, two hundred forty-two billion, three hundred thirty-two million, three hundred thirty-two thousand, four hundred twenty-one".