231554120245 has 32 divisors (see below), whose sum is σ = 325694753280. Its totient is φ = 154752249600.

The previous prime is 231554120207. The next prime is 231554120249. The reversal of 231554120245 is 542021455132.

It is a happy number.

It is not a de Polignac number, because 231554120245 - 2⁹ = 231554119733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231554120245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231554120249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133230 + ... + 693439.

It is an arithmetic number, because the mean of its divisors is an integer number (10177961040).

Almost surely, 2^231554120245 is an apocalyptic number.

It is an amenable number.

231554120245 is a deficient number, since it is larger than the sum of its proper divisors (94140633035).

231554120245 is a wasteful number, since it uses less digits than its factorization.

231554120245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826885.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 231554120245 its reverse (542021455132), we get a palindrome (773575575377).

The spelling of 231554120245 in words is "two hundred thirty-one billion, five hundred fifty-four million, one hundred twenty thousand, two hundred forty-five".