201304342005551 has 8 divisors (see below), whose sum is σ = 203190595262160. Its totient is φ = 199418805556992.

The previous prime is 201304342005463. The next prime is 201304342005563. The reversal of 201304342005551 is 155500243403102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201304342005551 - 2²⁶ = 201304274896687 is a prime.

It is a super-2 number, since 2×201304342005551² (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 (201304342001551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178637705 + ... + 179761058.

It is an arithmetic number, because the mean of its divisors is an integer number (25398824407770).

Almost surely, 2^{201304342005551} is an apocalyptic number.

201304342005551 is a deficient number, since it is larger than the sum of its proper divisors (1886253256609).

201304342005551 is a wasteful number, since it uses less digits than its factorization.

201304342005551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358404025.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 201304342005551 its reverse (155500243403102), we get a palindrome (356804585408653).

The spelling of 201304342005551 in words is "two hundred one trillion, three hundred four billion, three hundred forty-two million, five thousand, five hundred fifty-one".