205401123341 has 6 divisors (see below), whose sum is σ = 216780687342. Its totient is φ = 194590537560.

The previous prime is 205401123299. The next prime is 205401123383. The reversal of 205401123341 is 143321104502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (205401123299) and next prime (205401123383).

It can be written as a sum of positive squares in only one way, i.e., 191118483241 + 14282640100 = 437171^2 + 119510^2 .

It is not a de Polignac number, because 205401123341 - 2³⁴ = 188221254157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205401123341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205401123041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 284488730 + ... + 284489451.

It is an arithmetic number, because the mean of its divisors is an integer number (36130114557).

Almost surely, 2^205401123341 is an apocalyptic number.

It is an amenable number.

205401123341 is a deficient number, since it is larger than the sum of its proper divisors (11379564001).

205401123341 is an equidigital number, since it uses as much as digits as its factorization.

205401123341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568978219 (or 568978200 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 205401123341 its reverse (143321104502), we get a palindrome (348722227843).

The spelling of 205401123341 in words is "two hundred five billion, four hundred one million, one hundred twenty-three thousand, three hundred forty-one".