40113254132621 has 2 divisors, whose sum is σ = 40113254132622. Its totient is φ = 40113254132620.

The previous prime is 40113254132597. The next prime is 40113254132629. The reversal of 40113254132621 is 12623145231104.

40113254132621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37465588195396 + 2647665937225 = 6120914^2 + 1627165^2 .

It is a cyclic number.

It is not a de Polignac number, because 40113254132621 - 2¹⁸ = 40113253870477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40113254132629) 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, 20056627066310 + 20056627066311.

It is an arithmetic number, because the mean of its divisors is an integer number (20056627066311).

Almost surely, 2^{40113254132621} is an apocalyptic number.

It is an amenable number.

40113254132621 is a deficient number, since it is larger than the sum of its proper divisors (1).

40113254132621 is an equidigital number, since it uses as much as digits as its factorization.

40113254132621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 40113254132621 its reverse (12623145231104), we get a palindrome (52736399363725).

The spelling of 40113254132621 in words is "forty trillion, one hundred thirteen billion, two hundred fifty-four million, one hundred thirty-two thousand, six hundred twenty-one".