205703099713 has 16 divisors (see below), whose sum is σ = 217627274880. Its totient is φ = 194028303744.

The previous prime is 205703099663. The next prime is 205703099779. The reversal of 205703099713 is 317990307502.

It is a cyclic number.

It is not a de Polignac number, because 205703099713 - 2³³ = 197113165121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205703099783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15042043 + ... + 15055711.

It is an arithmetic number, because the mean of its divisors is an integer number (13601704680).

Almost surely, 2^205703099713 is an apocalyptic number.

205703099713 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

205703099713 is a deficient number, since it is larger than the sum of its proper divisors (11924175167).

205703099713 is a wasteful number, since it uses less digits than its factorization.

205703099713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22728.

The product of its (nonzero) digits is 357210, while the sum is 46.

The spelling of 205703099713 in words is "two hundred five billion, seven hundred three million, ninety-nine thousand, seven hundred thirteen".