40231211312 has 20 divisors (see below), whose sum is σ = 78133134576. Its totient is φ = 20067821760.

The previous prime is 40231211291. The next prime is 40231211329. The reversal of 40231211312 is 21311213204.

It is a super-2 number, since 2×40231211312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2979548 + ... + 2993019.

Almost surely, 2^40231211312 is an apocalyptic number.

It is an amenable number.

40231211312 is a deficient number, since it is larger than the sum of its proper divisors (37901923264).

40231211312 is a wasteful number, since it uses less digits than its factorization.

40231211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972996 (or 5972990 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 40231211312 its reverse (21311213204), we get a palindrome (61542424516).

The spelling of 40231211312 in words is "forty billion, two hundred thirty-one million, two hundred eleven thousand, three hundred twelve".