31143325002 has 16 divisors (see below), whose sum is σ = 62858088480. Its totient is φ = 10285868592.

The previous prime is 31143325001. The next prime is 31143325061. The reversal of 31143325002 is 20052334113.

It is not an unprimeable number, because it can be changed into a prime (31143325001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23809228 + ... + 23810535.

It is an arithmetic number, because the mean of its divisors is an integer number (3928630530).

Almost surely, 2^31143325002 is an apocalyptic number.

31143325002 is an abundant number, since it is smaller than the sum of its proper divisors (31714763478).

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

31143325002 is a wasteful number, since it uses less digits than its factorization.

31143325002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47619877.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 31143325002 its reverse (20052334113), we get a palindrome (51195659115).

The spelling of 31143325002 in words is "thirty-one billion, one hundred forty-three million, three hundred twenty-five thousand, two".