31320310130 has 16 divisors (see below), whose sum is σ = 56504986560. Its totient is φ = 12499584432.

The previous prime is 31320310121. The next prime is 31320310139. The reversal of 31320310130 is 3101302313.

It is an interprime number because it is at equal distance from previous prime (31320310121) and next prime (31320310139).

It is a junction number, because it is equal to n+sod(n) for n = 31320310099 and 31320310108.

It is not an unprimeable number, because it can be changed into a prime (31320310139) 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, 3562844 + ... + 3571623.

It is an arithmetic number, because the mean of its divisors is an integer number (3531561660).

Almost surely, 2^31320310130 is an apocalyptic number.

31320310130 is a deficient number, since it is larger than the sum of its proper divisors (25184676430).

31320310130 is a wasteful number, since it uses less digits than its factorization.

31320310130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7134913.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31320310130 its reverse (3101302313), we get a palindrome (34421612443).

The spelling of 31320310130 in words is "thirty-one billion, three hundred twenty million, three hundred ten thousand, one hundred thirty".