31450243120 has 40 divisors (see below), whose sum is σ = 73172410416. Its totient is φ = 12571392768.

The previous prime is 31450243091. The next prime is 31450243207. The reversal of 31450243120 is 2134205413.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 19042 + ... + 251521.

Almost surely, 2^31450243120 is an apocalyptic number.

It is an amenable number.

31450243120 is an abundant number, since it is smaller than the sum of its proper divisors (41722167296).

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

31450243120 is a wasteful number, since it uses less digits than its factorization.

31450243120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272029 (or 272023 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 31450243120 its reverse (2134205413), we get a palindrome (33584448533).

The spelling of 31450243120 in words is "thirty-one billion, four hundred fifty million, two hundred forty-three thousand, one hundred twenty".