31430324003120 has 80 divisors (see below), whose sum is σ = 83729552662080. Its totient is φ = 10748408927232.

The previous prime is 31430324003107. The next prime is 31430324003161. The reversal of 31430324003120 is 2130042303413.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×31430324003120² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31430324003120.

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, 71923007 + ... + 72358686.

It is an arithmetic number, because the mean of its divisors is an integer number (1046619408276).

Almost surely, 2^{31430324003120} is an apocalyptic number.

It is an amenable number.

31430324003120 is an abundant number, since it is smaller than the sum of its proper divisors (52299228658960).

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

31430324003120 is a wasteful number, since it uses less digits than its factorization.

31430324003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144282102 (or 144282096 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31430324003120 its reverse (2130042303413), we get a palindrome (33560366306533).

The spelling of 31430324003120 in words is "thirty-one trillion, four hundred thirty billion, three hundred twenty-four million, three thousand, one hundred twenty".