40400313243133 has 2 divisors, whose sum is σ = 40400313243134. Its totient is φ = 40400313243132.

The previous prime is 40400313243109. The next prime is 40400313243167. The reversal of 40400313243133 is 33134231300404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29216759994009 + 11183553249124 = 5405253^2 + 3344182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40400313243133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40400313243095 and 40400313243104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40400313241133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200156621566 + 20200156621567.

It is an arithmetic number, because the mean of its divisors is an integer number (20200156621567).

Almost surely, 2^{40400313243133} is an apocalyptic number.

It is an amenable number.

40400313243133 is a deficient number, since it is larger than the sum of its proper divisors (1).

40400313243133 is an equidigital number, since it uses as much as digits as its factorization.

40400313243133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 40400313243133 its reverse (33134231300404), we get a palindrome (73534544543537).

The spelling of 40400313243133 in words is "forty trillion, four hundred billion, three hundred thirteen million, two hundred forty-three thousand, one hundred thirty-three".