40212352541 has 2 divisors, whose sum is σ = 40212352542. Its totient is φ = 40212352540.

The previous prime is 40212352511. The next prime is 40212352591. The reversal of 40212352541 is 14525321204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29365963225 + 10846389316 = 171365^2 + 104146^2 .

It is a cyclic number.

It is not a de Polignac number, because 40212352541 - 2³⁰ = 39138610717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40212352501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20106176270 + 20106176271.

It is an arithmetic number, because the mean of its divisors is an integer number (20106176271).

Almost surely, 2^40212352541 is an apocalyptic number.

It is an amenable number.

40212352541 is a deficient number, since it is larger than the sum of its proper divisors (1).

40212352541 is an equidigital number, since it uses as much as digits as its factorization.

40212352541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 40212352541 its reverse (14525321204), we get a palindrome (54737673745).

The spelling of 40212352541 in words is "forty billion, two hundred twelve million, three hundred fifty-two thousand, five hundred forty-one".