40051251101 has 2 divisors, whose sum is σ = 40051251102. Its totient is φ = 40051251100.

The previous prime is 40051251061. The next prime is 40051251127. The reversal of 40051251101 is 10115215004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37268688601 + 2782562500 = 193051^2 + 52750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40051251101 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 (40051251151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20025625550 + 20025625551.

It is an arithmetic number, because the mean of its divisors is an integer number (20025625551).

Almost surely, 2^40051251101 is an apocalyptic number.

It is an amenable number.

40051251101 is a deficient number, since it is larger than the sum of its proper divisors (1).

40051251101 is an equidigital number, since it uses as much as digits as its factorization.

40051251101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 40051251101 its reverse (10115215004), we get a palindrome (50166466105).

The spelling of 40051251101 in words is "forty billion, fifty-one million, two hundred fifty-one thousand, one hundred one".