40123331112 has 128 divisors (see below), whose sum is σ = 105972572160. Its totient is φ = 12645127680.

The previous prime is 40123331077. The next prime is 40123331123. The reversal of 40123331112 is 21113332104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4759333 + ... + 4767755.

It is an arithmetic number, because the mean of its divisors is an integer number (827910720).

Almost surely, 2^40123331112 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 40123331112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52986286080).

40123331112 is an abundant number, since it is smaller than the sum of its proper divisors (65849241048).

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

40123331112 is a wasteful number, since it uses less digits than its factorization.

40123331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8623 (or 8619 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 40123331112 its reverse (21113332104), we get a palindrome (61236663216).

The spelling of 40123331112 in words is "forty billion, one hundred twenty-three million, three hundred thirty-one thousand, one hundred twelve".