206231365555103 has 64 divisors (see below), whose sum is σ = 263162165437440. Its totient is φ = 157333163139072.

The previous prime is 206231365555087. The next prime is 206231365555121. The reversal of 206231365555103 is 301555563132602.

It is a cyclic number.

It is not a de Polignac number, because 206231365555103 - 2⁴ = 206231365555087 is a prime.

It is a super-2 number, since 2×206231365555103² (a number of 29 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 (206231365555183) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3546329075 + ... + 3546387227.

It is an arithmetic number, because the mean of its divisors is an integer number (4111908834960).

Almost surely, 2^{206231365555103} is an apocalyptic number.

206231365555103 is a deficient number, since it is larger than the sum of its proper divisors (56930799882337).

206231365555103 is a wasteful number, since it uses less digits than its factorization.

206231365555103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60976.

The product of its (nonzero) digits is 2430000, while the sum is 47.

The spelling of 206231365555103 in words is "two hundred six trillion, two hundred thirty-one billion, three hundred sixty-five million, five hundred fifty-five thousand, one hundred three".