311313130 has 16 divisors (see below), whose sum is σ = 561448584. Its totient is φ = 124284160.

The previous prime is 311313127. The next prime is 311313131. The reversal of 311313130 is 31313113.

It can be written as a sum of positive squares in 4 ways, for example, as 239351841 + 71961289 = 15471^2 + 8483^2 .

It is not an unprimeable number, because it can be changed into a prime (311313131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24667 + ... + 35086.

Almost surely, 2^311313130 is an apocalyptic number.

311313130 is a deficient number, since it is larger than the sum of its proper divisors (250135454).

311313130 is a wasteful number, since it uses less digits than its factorization.

311313130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60281.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 311313130 is about 17644.0678416288. The cubic root of 311313130 is about 677.7442046635.

Adding to 311313130 its reverse (31313113), we get a palindrome (342626243).

The spelling of 311313130 in words is "three hundred eleven million, three hundred thirteen thousand, one hundred thirty".