40412041121 has 2 divisors, whose sum is σ = 40412041122. Its totient is φ = 40412041120.

The previous prime is 40412041081. The next prime is 40412041123. The reversal of 40412041121 is 12114021404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28696360000 + 11715681121 = 169400^2 + 108239^2 .

It is a cyclic number.

It is not a de Polignac number, because 40412041121 - 2⁶ = 40412041057 is a prime.

Together with 40412041123, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40412041093 and 40412041102.

It is not a weakly prime, because it can be changed into another prime (40412041123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20206020560 + 20206020561.

It is an arithmetic number, because the mean of its divisors is an integer number (20206020561).

Almost surely, 2^40412041121 is an apocalyptic number.

It is an amenable number.

40412041121 is a deficient number, since it is larger than the sum of its proper divisors (1).

40412041121 is an equidigital number, since it uses as much as digits as its factorization.

40412041121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 40412041121 its reverse (12114021404), we get a palindrome (52526062525).

The spelling of 40412041121 in words is "forty billion, four hundred twelve million, forty-one thousand, one hundred twenty-one".