6720231029 has 2 divisors, whose sum is σ = 6720231030. Its totient is φ = 6720231028.

The previous prime is 6720230971. The next prime is 6720231031. The reversal of 6720231029 is 9201320276.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6720228529 + 2500 = 81977^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 6720231029 - 2²⁰ = 6719182453 is a prime.

It is a Sophie Germain prime.

Together with 6720231031, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6720230986 and 6720231004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6720231059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3360115514 + 3360115515.

It is an arithmetic number, because the mean of its divisors is an integer number (3360115515).

Almost surely, 2^6720231029 is an apocalyptic number.

It is an amenable number.

6720231029 is a deficient number, since it is larger than the sum of its proper divisors (1).

6720231029 is an equidigital number, since it uses as much as digits as its factorization.

6720231029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 6720231029 is about 81977.0152481779. The cubic root of 6720231029 is about 1887.0992173574.

The spelling of 6720231029 in words is "six billion, seven hundred twenty million, two hundred thirty-one thousand, twenty-nine".