231442130 has 32 divisors (see below), whose sum is σ = 428537088. Its totient is φ = 89942400.

The previous prime is 231442109. The next prime is 231442213. The reversal of 231442130 is 31244132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110069 + ... + 112151.

It is an arithmetic number, because the mean of its divisors is an integer number (13391784).

Almost surely, 2^231442130 is an apocalyptic number.

231442130 is a deficient number, since it is larger than the sum of its proper divisors (197094958).

231442130 is a wasteful number, since it uses less digits than its factorization.

231442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 231442130 is about 15213.2222096438. Note that the first 4 decimals coincide. The cubic root of 231442130 is about 613.9704544983.

Adding to 231442130 its reverse (31244132), we get a palindrome (262686262).

It can be divided in two parts, 2314 and 42130, that added together give a palindrome (44444).

The spelling of 231442130 in words is "two hundred thirty-one million, four hundred forty-two thousand, one hundred thirty".