40021320112 has 20 divisors (see below), whose sum is σ = 78698642776. Its totient is φ = 19711992960.

The previous prime is 40021320077. The next prime is 40021320121. The reversal of 40021320112 is 21102312004.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18665589 + ... + 18667732.

Almost surely, 2^40021320112 is an apocalyptic number.

It is an amenable number.

40021320112 is a deficient number, since it is larger than the sum of its proper divisors (38677322664).

40021320112 is a wasteful number, since it uses less digits than its factorization.

40021320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37333396 (or 37333390 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 40021320112 its reverse (21102312004), we get a palindrome (61123632116).

The spelling of 40021320112 in words is "forty billion, twenty-one million, three hundred twenty thousand, one hundred twelve".