231321465604 has 6 divisors (see below), whose sum is σ = 404812564814. Its totient is φ = 115660732800.

The previous prime is 231321465593. The next prime is 231321465671. The reversal of 231321465604 is 406564123132.

It can be written as a sum of positive squares in only one way, i.e., 179774304004 + 51547161600 = 423998^2 + 227040^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28915183197 + ... + 28915183204.

Almost surely, 2^231321465604 is an apocalyptic number.

It is an amenable number.

231321465604 is a deficient number, since it is larger than the sum of its proper divisors (173491099210).

231321465604 is a wasteful number, since it uses less digits than its factorization.

231321465604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57830366405 (or 57830366403 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 231321465604 its reverse (406564123132), we get a palindrome (637885588736).

The spelling of 231321465604 in words is "two hundred thirty-one billion, three hundred twenty-one million, four hundred sixty-five thousand, six hundred four".