231241203208 has 16 divisors (see below), whose sum is σ = 433705243500. Its totient is φ = 115586471616.

The previous prime is 231241203173. The next prime is 231241203209. The reversal of 231241203208 is 802302142132.

231241203208 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 154324836964 + 76916366244 = 392842^2 + 277338^2 .

It is a super-2 number, since 2×231241203208² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231241203209) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4237443 + ... + 4291666.

Almost surely, 2^231241203208 is an apocalyptic number.

It is an amenable number.

231241203208 is a deficient number, since it is larger than the sum of its proper divisors (202464040292).

231241203208 is a wasteful number, since it uses less digits than its factorization.

231241203208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8532504 (or 8532500 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 231241203208 in words is "two hundred thirty-one billion, two hundred forty-one million, two hundred three thousand, two hundred eight".