40321322403312 has 80 divisors (see below), whose sum is σ = 105363989844480. Its totient is φ = 13286070690816.

The previous prime is 40321322403259. The next prime is 40321322403319. The reversal of 40321322403312 is 21330422312304.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40321322403312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40321322403319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6100137 + ... + 10856072.

It is an arithmetic number, because the mean of its divisors is an integer number (1317049873056).

Almost surely, 2^{40321322403312} is an apocalyptic number.

It is an amenable number.

40321322403312 is an abundant number, since it is smaller than the sum of its proper divisors (65042667441168).

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

40321322403312 is a wasteful number, since it uses less digits than its factorization.

40321322403312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16956790 (or 16956784 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 40321322403312 its reverse (21330422312304), we get a palindrome (61651744715616).

The spelling of 40321322403312 in words is "forty trillion, three hundred twenty-one billion, three hundred twenty-two million, four hundred three thousand, three hundred twelve".