205141535351111 has 4 divisors (see below), whose sum is σ = 206172397338000. Its totient is φ = 204110673364224.

The previous prime is 205141535351099. The next prime is 205141535351113. The reversal of 205141535351111 is 111153535141502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205141535351111 is a prime.

It is a super-2 number, since 2×205141535351111² (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 (205141535351113) 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, 515430993146 + ... + 515430993543.

It is an arithmetic number, because the mean of its divisors is an integer number (51543099334500).

Almost surely, 2^{205141535351111} is an apocalyptic number.

205141535351111 is a deficient number, since it is larger than the sum of its proper divisors (1030861986889).

205141535351111 is a wasteful number, since it uses less digits than its factorization.

205141535351111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030861986888.

The product of its (nonzero) digits is 45000, while the sum is 38.

The spelling of 205141535351111 in words is "two hundred five trillion, one hundred forty-one billion, five hundred thirty-five million, three hundred fifty-one thousand, one hundred eleven".