201151543434 has 16 divisors (see below), whose sum is σ = 405197355360. Its totient is φ = 66568136400.

The previous prime is 201151543399. The next prime is 201151543531. The reversal of 201151543434 is 434345151102.

201151543434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201151543395 and 201151543404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120593617 + ... + 120595284.

It is an arithmetic number, because the mean of its divisors is an integer number (25324834710).

Almost surely, 2^201151543434 is an apocalyptic number.

201151543434 is an abundant number, since it is smaller than the sum of its proper divisors (204045811926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201151543434 is a wasteful number, since it uses less digits than its factorization.

201151543434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241189045.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 201151543434 its reverse (434345151102), we get a palindrome (635496694536).

The spelling of 201151543434 in words is "two hundred one billion, one hundred fifty-one million, five hundred forty-three thousand, four hundred thirty-four".