310020109 has 12 divisors (see below), whose sum is σ = 381850524. Its totient is φ = 250099584.

The previous prime is 310020097. The next prime is 310020127. The reversal of 310020109 is 901020013.

It can be written as a sum of positive squares in 2 ways, for example, as 100060009 + 209960100 = 10003^2 + 14490^2 .

It is not a de Polignac number, because 310020109 - 2¹⁷ = 309889037 is a prime.

It is a super-2 number, since 2×310020109² = 192224935968743762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310020092 and 310020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310020149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185254 + ... + 186919.

It is an arithmetic number, because the mean of its divisors is an integer number (31820877).

Almost surely, 2^310020109 is an apocalyptic number.

It is an amenable number.

310020109 is a deficient number, since it is larger than the sum of its proper divisors (71830415).

310020109 is a wasteful number, since it uses less digits than its factorization.

310020109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372204 (or 372197 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 310020109 is about 17607.3879096248. The cubic root of 310020109 is about 676.8045788395.

The spelling of 310020109 in words is "three hundred ten million, twenty thousand, one hundred nine".