205031043315151 has 4 divisors (see below), whose sum is σ = 205031949407712. Its totient is φ = 205030137222592.

The previous prime is 205031043315127. The next prime is 205031043315167. The reversal of 205031043315151 is 151513340130502.

205031043315151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205031043315151 - 2³⁹ = 204481287501263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205031043315251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452706775 + ... + 453159448.

It is an arithmetic number, because the mean of its divisors is an integer number (51257987351928).

Almost surely, 2^{205031043315151} is an apocalyptic number.

205031043315151 is a deficient number, since it is larger than the sum of its proper divisors (906092561).

205031043315151 is an equidigital number, since it uses as much as digits as its factorization.

205031043315151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906092560.

The product of its (nonzero) digits is 27000, while the sum is 34.

Adding to 205031043315151 its reverse (151513340130502), we get a palindrome (356544383445653).

The spelling of 205031043315151 in words is "two hundred five trillion, thirty-one billion, forty-three million, three hundred fifteen thousand, one hundred fifty-one".