205421011341 has 32 divisors (see below), whose sum is σ = 337125734400. Its totient is φ = 108346037184.

The previous prime is 205421011333. The next prime is 205421011387. The reversal of 205421011341 is 143110124502.

It is not a de Polignac number, because 205421011341 - 2³ = 205421011333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205421011241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7274736 + ... + 7302918.

It is an arithmetic number, because the mean of its divisors is an integer number (10535179200).

Almost surely, 2^205421011341 is an apocalyptic number.

205421011341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

205421011341 is a deficient number, since it is larger than the sum of its proper divisors (131704723059).

205421011341 is a wasteful number, since it uses less digits than its factorization.

205421011341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54905.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 205421011341 its reverse (143110124502), we get a palindrome (348531135843).

The spelling of 205421011341 in words is "two hundred five billion, four hundred twenty-one million, eleven thousand, three hundred forty-one".