2130331309 has 8 divisors (see below), whose sum is σ = 2140626488. Its totient is φ = 2120048640.

The previous prime is 2130331267. The next prime is 2130331381. The reversal of 2130331309 is 9031330312.

It can be written as a sum of positive squares in 4 ways, for example, as 51883209 + 2078448100 = 7203^2 + 45590^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2130331309 - 2²³ = 2121942701 is a prime.

It is a super-2 number, since 2×2130331309² = 9076622972211306962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130334309) 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, 614509 + ... + 617965.

It is an arithmetic number, because the mean of its divisors is an integer number (267578311).

Almost surely, 2^2130331309 is an apocalyptic number.

It is an amenable number.

2130331309 is a deficient number, since it is larger than the sum of its proper divisors (10295179).

2130331309 is a wasteful number, since it uses less digits than its factorization.

2130331309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6255.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 2130331309 is about 46155.5122276852. The cubic root of 2130331309 is about 1286.7150579653.

The spelling of 2130331309 in words is "two billion, one hundred thirty million, three hundred thirty-one thousand, three hundred nine".