230321691 has 16 divisors (see below), whose sum is σ = 342729600. Its totient is φ = 152867304.

The previous prime is 230321653. The next prime is 230321719. The reversal of 230321691 is 196123032.

It is not a de Polignac number, because 230321691 - 2¹⁷ = 230190619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (230321621) 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, 12661 + ... + 24918.

It is an arithmetic number, because the mean of its divisors is an integer number (21420600).

Almost surely, 2^230321691 is an apocalyptic number.

230321691 is a deficient number, since it is larger than the sum of its proper divisors (112407909).

230321691 is a wasteful number, since it uses less digits than its factorization.

230321691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37815 (or 37809 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 230321691 is about 15176.3530204065. The cubic root of 230321691 is about 612.9780832698.

The spelling of 230321691 in words is "two hundred thirty million, three hundred twenty-one thousand, six hundred ninety-one".