40244433331 has 2 divisors, whose sum is σ = 40244433332. Its totient is φ = 40244433330.

The previous prime is 40244433329. The next prime is 40244433367. The reversal of 40244433331 is 13333444204.

40244433331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40244433331 - 2¹ = 40244433329 is a prime.

It is a super-2 number, since 2×40244433331² (a number of 22 digits) contains 22 as substring.

Together with 40244433329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 40244433293 and 40244433302.

It is not a weakly prime, because it can be changed into another prime (40244413331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20122216665 + 20122216666.

It is an arithmetic number, because the mean of its divisors is an integer number (20122216666).

Almost surely, 2^40244433331 is an apocalyptic number.

40244433331 is a deficient number, since it is larger than the sum of its proper divisors (1).

40244433331 is an equidigital number, since it uses as much as digits as its factorization.

40244433331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 40244433331 its reverse (13333444204), we get a palindrome (53577877535).

The spelling of 40244433331 in words is "forty billion, two hundred forty-four million, four hundred thirty-three thousand, three hundred thirty-one".