40401413321 has 2 divisors, whose sum is σ = 40401413322. Its totient is φ = 40401413320.

The previous prime is 40401413317. The next prime is 40401413329. The reversal of 40401413321 is 12331410404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40384921600 + 16491721 = 200960^2 + 4061^2 .

It is a cyclic number.

It is not a de Polignac number, because 40401413321 - 2² = 40401413317 is a prime.

It is not a weakly prime, because it can be changed into another prime (40401413329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200706660 + 20200706661.

It is an arithmetic number, because the mean of its divisors is an integer number (20200706661).

Almost surely, 2^40401413321 is an apocalyptic number.

It is an amenable number.

40401413321 is a deficient number, since it is larger than the sum of its proper divisors (1).

40401413321 is an equidigital number, since it uses as much as digits as its factorization.

40401413321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 40401413321 its reverse (12331410404), we get a palindrome (52732823725).

The spelling of 40401413321 in words is "forty billion, four hundred one million, four hundred thirteen thousand, three hundred twenty-one".