31323554442504 has 192 divisors, whose sum is σ = 87659037648000. Its totient is φ = 10098209571840.

The previous prime is 31323554442457. The next prime is 31323554442553. The reversal of 31323554442504 is 40524445532313.

31323554442504 is a `hidden beast` number, since 3 + 1 + 3 + 2 + 3 + 554 + 4 + 42 + 50 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 31323554442504.

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 47 ways as a sum of consecutive naturals, for example, 277735677 + ... + 277848435.

It is an arithmetic number, because the mean of its divisors is an integer number (456557487750).

Almost surely, 2^{31323554442504} 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 31323554442504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43829518824000).

31323554442504 is an abundant number, since it is smaller than the sum of its proper divisors (56335483205496).

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

31323554442504 is a wasteful number, since it uses less digits than its factorization.

31323554442504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113628 (or 113621 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 45.

Adding to 31323554442504 its reverse (40524445532313), we get a palindrome (71847999974817).

The spelling of 31323554442504 in words is "thirty-one trillion, three hundred twenty-three billion, five hundred fifty-four million, four hundred forty-two thousand, five hundred four".