231421232104 has 8 divisors (see below), whose sum is σ = 433914810210. Its totient is φ = 115710616048.

The previous prime is 231421231997. The next prime is 231421232143. The reversal of 231421232104 is 401232124132.

It can be written as a sum of positive squares in only one way, i.e., 179350556004 + 52070676100 = 423498^2 + 228190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14463826999 + ... + 14463827014.

Almost surely, 2^231421232104 is an apocalyptic number.

It is an amenable number.

231421232104 is a deficient number, since it is larger than the sum of its proper divisors (202493578106).

231421232104 is a wasteful number, since it uses less digits than its factorization.

231421232104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28927654019 (or 28927654015 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 231421232104 its reverse (401232124132), we get a palindrome (632653356236).

The spelling of 231421232104 in words is "two hundred thirty-one billion, four hundred twenty-one million, two hundred thirty-two thousand, one hundred four".