231072603620 has 48 divisors (see below), whose sum is σ = 533000442240. Its totient is φ = 83757206016.

The previous prime is 231072603617. The next prime is 231072603637. The reversal of 231072603620 is 26306270132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13210517 + ... + 13227996.

It is an arithmetic number, because the mean of its divisors is an integer number (11104175880).

Almost surely, 2^231072603620 is an apocalyptic number.

231072603620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231072603620 is an abundant number, since it is smaller than the sum of its proper divisors (301927838620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231072603620 is a wasteful number, since it uses less digits than its factorization.

231072603620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26438564 (or 26438562 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 231072603620 its reverse (26306270132), we get a palindrome (257378873752).

The spelling of 231072603620 in words is "two hundred thirty-one billion, seventy-two million, six hundred three thousand, six hundred twenty".