231205353045 has 32 divisors (see below), whose sum is σ = 404324213760. Its totient is φ = 112312273920.

The previous prime is 231205353031. The next prime is 231205353047. The reversal of 231205353045 is 540353502132.

It is not a de Polignac number, because 231205353045 - 2⁹ = 231205352533 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 231205352997 and 231205353015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231205353047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14616090 + ... + 14631899.

It is an arithmetic number, because the mean of its divisors is an integer number (12635131680).

Almost surely, 2^231205353045 is an apocalyptic number.

It is an amenable number.

231205353045 is a deficient number, since it is larger than the sum of its proper divisors (173118860715).

231205353045 is a wasteful number, since it uses less digits than its factorization.

231205353045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29248045.

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 231205353045 its reverse (540353502132), we get a palindrome (771558855177).

The spelling of 231205353045 in words is "two hundred thirty-one billion, two hundred five million, three hundred fifty-three thousand, forty-five".