40344223403231 has 24 divisors (see below), whose sum is σ = 44440894531152. Its totient is φ = 36597591676800.

The previous prime is 40344223403191. The next prime is 40344223403233. The reversal of 40344223403231 is 13230432244304.

It is not a de Polignac number, because 40344223403231 - 2¹⁰ = 40344223402207 is a prime.

It is a super-2 number, since 2×40344223403231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40344223403191 and 40344223403200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344223403233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104396021 + ... + 104781761.

It is an arithmetic number, because the mean of its divisors is an integer number (1851703938798).

Almost surely, 2^{40344223403231} is an apocalyptic number.

40344223403231 is a deficient number, since it is larger than the sum of its proper divisors (4096671127921).

40344223403231 is a wasteful number, since it uses less digits than its factorization.

40344223403231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387623 (or 387612 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 40344223403231 its reverse (13230432244304), we get a palindrome (53574655647535).

The spelling of 40344223403231 in words is "forty trillion, three hundred forty-four billion, two hundred twenty-three million, four hundred three thousand, two hundred thirty-one".