40321223312 has 20 divisors (see below), whose sum is σ = 82234074480. Its totient is φ = 19099526688.

The previous prime is 40321223309. The next prime is 40321223323. The reversal of 40321223312 is 21332212304.

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, 66317498 + ... + 66318105.

It is an arithmetic number, because the mean of its divisors is an integer number (4111703724).

Almost surely, 2^40321223312 is an apocalyptic number.

It is an amenable number.

40321223312 is an abundant number, since it is smaller than the sum of its proper divisors (41912851168).

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

40321223312 is a wasteful number, since it uses less digits than its factorization.

40321223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132635630 (or 132635624 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 40321223312 its reverse (21332212304), we get a palindrome (61653435616).

The spelling of 40321223312 in words is "forty billion, three hundred twenty-one million, two hundred twenty-three thousand, three hundred twelve".