31224212040032 has 96 divisors (see below), whose sum is σ = 71120952715680. Its totient is φ = 13336300257280.

The previous prime is 31224212040019. The next prime is 31224212040067. The reversal of 31224212040032 is 23004021242213.

It is a super-2 number, since 2×31224212040032² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31224212039983 and 31224212040010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536357 + ... + 7920612.

It is an arithmetic number, because the mean of its divisors is an integer number (740843257455).

Almost surely, 2^{31224212040032} is an apocalyptic number.

31224212040032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31224212040032 is an abundant number, since it is smaller than the sum of its proper divisors (39896740675648).

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

31224212040032 is a wasteful number, since it uses less digits than its factorization.

31224212040032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8457624 (or 8457616 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31224212040032 its reverse (23004021242213), we get a palindrome (54228233282245).

The spelling of 31224212040032 in words is "thirty-one trillion, two hundred twenty-four billion, two hundred twelve million, forty thousand, thirty-two".