230000699721 has 16 divisors (see below), whose sum is σ = 330293534144. Its totient is φ = 141523412544.

The previous prime is 230000699711. The next prime is 230000699813. The reversal of 230000699721 is 127996000032.

It is not a de Polignac number, because 230000699721 - 2⁵ = 230000699689 is a prime.

It is a super-3 number, since 3×230000699721³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230000699721.

It is not an unprimeable number, because it can be changed into a prime (230000699701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43950 + ... + 679656.

It is an arithmetic number, because the mean of its divisors is an integer number (20643345884).

Almost surely, 2^230000699721 is an apocalyptic number.

It is an amenable number.

230000699721 is a deficient number, since it is larger than the sum of its proper divisors (100292834423).

230000699721 is a wasteful number, since it uses less digits than its factorization.

230000699721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645000.

The product of its (nonzero) digits is 40824, while the sum is 39.

Adding to 230000699721 its reverse (127996000032), we get a palindrome (357996699753).

The spelling of 230000699721 in words is "two hundred thirty billion, six hundred ninety-nine thousand, seven hundred twenty-one".