40001342331 has 16 divisors (see below), whose sum is σ = 55658787840. Its totient is φ = 25505927040.

The previous prime is 40001342323. The next prime is 40001342369. The reversal of 40001342331 is 13324310004.

It is not a de Polignac number, because 40001342331 - 2³ = 40001342323 is a prime.

It is a super-2 number, since 2×40001342331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40001342298 and 40001342307.

It is not an unprimeable number, because it can be changed into a prime (40001342321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1304190 + ... + 1334508.

It is an arithmetic number, because the mean of its divisors is an integer number (3478674240).

Almost surely, 2^40001342331 is an apocalyptic number.

40001342331 is a deficient number, since it is larger than the sum of its proper divisors (15657445509).

40001342331 is a wasteful number, since it uses less digits than its factorization.

40001342331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49466.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 40001342331 its reverse (13324310004), we get a palindrome (53325652335).

The spelling of 40001342331 in words is "forty billion, one million, three hundred forty-two thousand, three hundred thirty-one".