201123434 has 8 divisors (see below), whose sum is σ = 308104128. Its totient is φ = 98422060.

The previous prime is 201123401. The next prime is 201123449. The reversal of 201123434 is 434321102.

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

It is a super-3 number, since 3×201123434³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069712 + ... + 1069899.

It is an arithmetic number, because the mean of its divisors is an integer number (38513016).

Almost surely, 2^201123434 is an apocalyptic number.

201123434 is a deficient number, since it is larger than the sum of its proper divisors (106980694).

201123434 is a wasteful number, since it uses less digits than its factorization.

201123434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139660.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 201123434 is about 14181.7993921787. The cubic root of 201123434 is about 585.8964841011.

Adding to 201123434 its reverse (434321102), we get a palindrome (635444536).

The spelling of 201123434 in words is "two hundred one million, one hundred twenty-three thousand, four hundred thirty-four".