31310322130 has 16 divisors (see below), whose sum is σ = 56905752384. Its totient is φ = 12402534960.

The previous prime is 31310322107. The next prime is 31310322139. The reversal of 31310322130 is 3122301313.

It is a junction number, because it is equal to n+sod(n) for n = 31310322098 and 31310322107.

It is not an unprimeable number, because it can be changed into a prime (31310322139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15198156 + ... + 15200215.

It is an arithmetic number, because the mean of its divisors is an integer number (3556609524).

Almost surely, 2^31310322130 is an apocalyptic number.

31310322130 is a deficient number, since it is larger than the sum of its proper divisors (25595430254).

31310322130 is a wasteful number, since it uses less digits than its factorization.

31310322130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30398481.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31310322130 its reverse (3122301313), we get a palindrome (34432623443).

The spelling of 31310322130 in words is "thirty-one billion, three hundred ten million, three hundred twenty-two thousand, one hundred thirty".