1242234322421 has 4 divisors (see below), whose sum is σ = 1243196550144. Its totient is φ = 1241272094700.

The previous prime is 1242234322411. The next prime is 1242234322463.

1242234322421 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 a de Polignac number, because none of the positive numbers 2^k-1242234322421 is a prime.

It is a super-2 number, since 2×1242234322421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242234322411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481111925 + ... + 481114506.

It is an arithmetic number, because the mean of its divisors is an integer number (310799137536).

Almost surely, 2^{1242234322421} is an apocalyptic number.

It is an amenable number.

1242234322421 is a deficient number, since it is larger than the sum of its proper divisors (962227723).

1242234322421 is an equidigital number, since it uses as much as digits as its factorization.

1242234322421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962227722.

The product of its digits is 36864, while the sum is 32.

The spelling of 1242234322421 in words is "one trillion, two hundred forty-two billion, two hundred thirty-four million, three hundred twenty-two thousand, four hundred twenty-one".