40321421431012 has 12 divisors (see below), whose sum is σ = 70562984639616. Its totient is φ = 20160568676840.

The previous prime is 40321421431003. The next prime is 40321421431069. The reversal of 40321421431012 is 21013412412304.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34869664 + ... + 36007447.

It is an arithmetic number, because the mean of its divisors is an integer number (5880248719968).

Almost surely, 2^{40321421431012} is an apocalyptic number.

It is an amenable number.

40321421431012 is a deficient number, since it is larger than the sum of its proper divisors (30241563208604).

40321421431012 is a wasteful number, since it uses less digits than its factorization.

40321421431012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71019338 (or 71019336 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 40321421431012 its reverse (21013412412304), we get a palindrome (61334833843316).

The spelling of 40321421431012 in words is "forty trillion, three hundred twenty-one billion, four hundred twenty-one million, four hundred thirty-one thousand, twelve".