205356052152131 has 4 divisors (see below), whose sum is σ = 211980440931264. Its totient is φ = 198731663373000.

The previous prime is 205356052152113. The next prime is 205356052152143. The reversal of 205356052152131 is 131251250653502.

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-205356052152131 is a prime.

It is a super-2 number, since 2×205356052152131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205356052155131) 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, 3312194389520 + ... + 3312194389581.

It is an arithmetic number, because the mean of its divisors is an integer number (52995110232816).

Almost surely, 2^{205356052152131} is an apocalyptic number.

205356052152131 is a deficient number, since it is larger than the sum of its proper divisors (6624388779133).

205356052152131 is an equidigital number, since it uses as much as digits as its factorization.

205356052152131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624388779132.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 205356052152131 in words is "two hundred five trillion, three hundred fifty-six billion, fifty-two million, one hundred fifty-two thousand, one hundred thirty-one".