310720130 has 64 divisors (see below), whose sum is σ = 664934400. Its totient is φ = 102404160.

The previous prime is 310720127. The next prime is 310720139. The reversal of 310720130 is 31027013.

It is a junction number, because it is equal to n+sod(n) for n = 310720099 and 310720108.

It is not an unprimeable number, because it can be changed into a prime (310720139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2085296 + ... + 2085444.

It is an arithmetic number, because the mean of its divisors is an integer number (10389600).

Almost surely, 2^310720130 is an apocalyptic number.

310720130 is an abundant number, since it is smaller than the sum of its proper divisors (354214270).

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

310720130 is an equidigital number, since it uses as much as digits as its factorization.

310720130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 310720130 is about 17627.2553166964. The cubic root of 310720130 is about 677.3136009499.

Adding to 310720130 its reverse (31027013), we get a palindrome (341747143).

The spelling of 310720130 in words is "three hundred ten million, seven hundred twenty thousand, one hundred thirty".