231302123 has 16 divisors (see below), whose sum is σ = 254741760. Its totient is φ = 208700544.

The previous prime is 231302101. The next prime is 231302131. The reversal of 231302123 is 321203132.

It is not a de Polignac number, because 231302123 - 2¹² = 231298027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231301123) 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, 267590 + ... + 268452.

It is an arithmetic number, because the mean of its divisors is an integer number (15921360).

Almost surely, 2^231302123 is an apocalyptic number.

231302123 is a deficient number, since it is larger than the sum of its proper divisors (23439637).

231302123 is a wasteful number, since it uses less digits than its factorization.

231302123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231302123 is about 15208.6200228686. The cubic root of 231302123 is about 613.8466258467.

Adding to 231302123 its reverse (321203132), we get a palindrome (552505255).

The spelling of 231302123 in words is "two hundred thirty-one million, three hundred two thousand, one hundred twenty-three".