244242000421 has 2 divisors, whose sum is σ = 244242000422. Its totient is φ = 244242000420.

The previous prime is 244242000383. The next prime is 244242000433. The reversal of 244242000421 is 124000242442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143670563521 + 100571436900 = 379039^2 + 317130^2 .

It is a cyclic number.

It is not a de Polignac number, because 244242000421 - 2¹¹ = 244241998373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244242000461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122121000210 + 122121000211.

It is an arithmetic number, because the mean of its divisors is an integer number (122121000211).

Almost surely, 2^244242000421 is an apocalyptic number.

It is an amenable number.

244242000421 is a deficient number, since it is larger than the sum of its proper divisors (1).

244242000421 is an equidigital number, since it uses as much as digits as its factorization.

244242000421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 244242000421 its reverse (124000242442), we get a palindrome (368242242863).

The spelling of 244242000421 in words is "two hundred forty-four billion, two hundred forty-two million, four hundred twenty-one", and thus it is an aban number.