40243211312 has 20 divisors (see below), whose sum is σ = 78036616200. Its totient is φ = 20104729728.

The previous prime is 40243211311. The next prime is 40243211363. The reversal of 40243211312 is 21311234204.

40243211312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40243211312² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40243211311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035062 + ... + 1073237.

It is an arithmetic number, because the mean of its divisors is an integer number (3901830810).

Almost surely, 2^40243211312 is an apocalyptic number.

It is an amenable number.

40243211312 is a deficient number, since it is larger than the sum of its proper divisors (37793404888).

40243211312 is a wasteful number, since it uses less digits than its factorization.

40243211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109500 (or 2109494 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 40243211312 its reverse (21311234204), we get a palindrome (61554445516).

The spelling of 40243211312 in words is "forty billion, two hundred forty-three million, two hundred eleven thousand, three hundred twelve".