40120113232 has 20 divisors (see below), whose sum is σ = 78209612320. Its totient is φ = 19936987488.

The previous prime is 40120113211. The next prime is 40120113239. The reversal of 40120113232 is 23231102104.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120113239) 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, 7689132 + ... + 7694347.

It is an arithmetic number, because the mean of its divisors is an integer number (3910480616).

Almost surely, 2^40120113232 is an apocalyptic number.

It is an amenable number.

40120113232 is a deficient number, since it is larger than the sum of its proper divisors (38089499088).

40120113232 is a wasteful number, since it uses less digits than its factorization.

40120113232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15383650 (or 15383644 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 40120113232 its reverse (23231102104), we get a palindrome (63351215336).

The spelling of 40120113232 in words is "forty billion, one hundred twenty million, one hundred thirteen thousand, two hundred thirty-two".