31320241000 has 64 divisors (see below), whose sum is σ = 75270246480. Its totient is φ = 12189484800.

The previous prime is 31320240967. The next prime is 31320241063. The reversal of 31320241000 is 14202313.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4136805124 + 27183435876 = 64318^2 + 164874^2 .

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, 386247 + ... + 460246.

Almost surely, 2^31320241000 is an apocalyptic number.

It is an amenable number.

31320241000 is an abundant number, since it is smaller than the sum of its proper divisors (43950005480).

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

31320241000 is a wasteful number, since it uses less digits than its factorization.

31320241000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846551 (or 846537 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31320241000 its reverse (14202313), we get a palindrome (31334443313).

The spelling of 31320241000 in words is "thirty-one billion, three hundred twenty million, two hundred forty-one thousand".