31421504314304 has 112 divisors (see below), whose sum is σ = 68612504835168. Its totient is φ = 14187594190848.

The previous prime is 31421504314279. The next prime is 31421504314351. The reversal of 31421504314304 is 40341340512413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14274554 + ... + 16328070.

It is an arithmetic number, because the mean of its divisors is an integer number (612611650314).

Almost surely, 2^{31421504314304} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31421504314304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34306252417584).

31421504314304 is an abundant number, since it is smaller than the sum of its proper divisors (37191000520864).

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

31421504314304 is a wasteful number, since it uses less digits than its factorization.

31421504314304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053942 (or 2053932 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 31421504314304 its reverse (40341340512413), we get a palindrome (71762844826717).

The spelling of 31421504314304 in words is "thirty-one trillion, four hundred twenty-one billion, five hundred four million, three hundred fourteen thousand, three hundred four".