2130309997 has 2 divisors, whose sum is σ = 2130309998. Its totient is φ = 2130309996.

The previous prime is 2130309989. The next prime is 2130310019. The reversal of 2130309997 is 7999030312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1870649001 + 259660996 = 43251^2 + 16114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130309997 - 2³ = 2130309989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130309917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065154998 + 1065154999.

It is an arithmetic number, because the mean of its divisors is an integer number (1065154999).

Almost surely, 2^2130309997 is an apocalyptic number.

It is an amenable number.

2130309997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130309997 is an equidigital number, since it uses as much as digits as its factorization.

2130309997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 2130309997 is about 46155.2813554419. The cubic root of 2130309997 is about 1286.7107671519.

The spelling of 2130309997 in words is "two billion, one hundred thirty million, three hundred nine thousand, nine hundred ninety-seven".