401442231013 has 2 divisors, whose sum is σ = 401442231014. Its totient is φ = 401442231012.

The previous prime is 401442230993. The next prime is 401442231017. The reversal of 401442231013 is 310132244104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312818727204 + 88623503809 = 559302^2 + 297697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401442231013 is a prime.

It is a super-2 number, since 2×401442231013² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401442231017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200721115506 + 200721115507.

It is an arithmetic number, because the mean of its divisors is an integer number (200721115507).

Almost surely, 2^401442231013 is an apocalyptic number.

It is an amenable number.

401442231013 is a deficient number, since it is larger than the sum of its proper divisors (1).

401442231013 is an equidigital number, since it uses as much as digits as its factorization.

401442231013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 401442231013 its reverse (310132244104), we get a palindrome (711574475117).

The spelling of 401442231013 in words is "four hundred one billion, four hundred forty-two million, two hundred thirty-one thousand, thirteen".