231134220004 has 6 divisors (see below), whose sum is σ = 404484885014. Its totient is φ = 115567110000.

The previous prime is 231134219977. The next prime is 231134220077. The reversal of 231134220004 is 400022431132.

231134220004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 214915688100 + 16218531904 = 463590^2 + 127352^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28891777497 + ... + 28891777504.

Almost surely, 2^231134220004 is an apocalyptic number.

It is an amenable number.

231134220004 is a deficient number, since it is larger than the sum of its proper divisors (173350665010).

231134220004 is a wasteful number, since it uses less digits than its factorization.

231134220004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57783555005 (or 57783555003 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 231134220004 its reverse (400022431132), we get a palindrome (631156651136).

The spelling of 231134220004 in words is "two hundred thirty-one billion, one hundred thirty-four million, two hundred twenty thousand, four".