205322155103 has 8 divisors (see below), whose sum is σ = 221938164000. Its totient is φ = 188823574368.

The previous prime is 205322155099. The next prime is 205322155117. The reversal of 205322155103 is 301551223502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205322155103 - 2² = 205322155099 is a prime.

It is a super-2 number, since 2×205322155103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205322155303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29353403 + ... + 29360396.

It is an arithmetic number, because the mean of its divisors is an integer number (27742270500).

Almost surely, 2^205322155103 is an apocalyptic number.

205322155103 is a deficient number, since it is larger than the sum of its proper divisors (16616008897).

205322155103 is a wasteful number, since it uses less digits than its factorization.

205322155103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58714081.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 205322155103 its reverse (301551223502), we get a palindrome (506873378605).

The spelling of 205322155103 in words is "two hundred five billion, three hundred twenty-two million, one hundred fifty-five thousand, one hundred three".