240411442421 has 2 divisors, whose sum is σ = 240411442422. Its totient is φ = 240411442420.

The previous prime is 240411442417. The next prime is 240411442429. The reversal of 240411442421 is 124244114042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240380361796 + 31080625 = 490286^2 + 5575^2 .

It is a cyclic number.

It is not a de Polignac number, because 240411442421 - 2² = 240411442417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240411442429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120205721210 + 120205721211.

It is an arithmetic number, because the mean of its divisors is an integer number (120205721211).

Almost surely, 2^240411442421 is an apocalyptic number.

It is an amenable number.

240411442421 is a deficient number, since it is larger than the sum of its proper divisors (1).

240411442421 is an equidigital number, since it uses as much as digits as its factorization.

240411442421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 240411442421 its reverse (124244114042), we get a palindrome (364655556463).

The spelling of 240411442421 in words is "two hundred forty billion, four hundred eleven million, four hundred forty-two thousand, four hundred twenty-one".