40011231104 has 64 divisors (see below), whose sum is σ = 85953290640. Its totient is φ = 18442653696.

The previous prime is 40011231097. The next prime is 40011231107. The reversal of 40011231104 is 40113211004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×40011231104² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40011231107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294292 + ... + 1324844.

Almost surely, 2^40011231104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40011231104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42976645320).

40011231104 is an abundant number, since it is smaller than the sum of its proper divisors (45942059536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40011231104 is a wasteful number, since it uses less digits than its factorization.

40011231104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31367 (or 31355 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 40011231104 its reverse (40113211004), we get a palindrome (80124442108).

The spelling of 40011231104 in words is "forty billion, eleven million, two hundred thirty-one thousand, one hundred four".