201434023 has 16 divisors (see below), whose sum is σ = 241122816. Its totient is φ = 164530080.

The previous prime is 201433997. The next prime is 201434039. The reversal of 201434023 is 320434102.

It is a cyclic number.

It is not a de Polignac number, because 201434023 - 2⁹ = 201433511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201438023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43353 + ... + 47773.

It is an arithmetic number, because the mean of its divisors is an integer number (15070176).

Almost surely, 2^201434023 is an apocalyptic number.

201434023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

201434023 is a deficient number, since it is larger than the sum of its proper divisors (39688793).

201434023 is a wasteful number, since it uses less digits than its factorization.

201434023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 201434023 is about 14192.7454356090. The cubic root of 201434023 is about 586.1979232189.

Adding to 201434023 its reverse (320434102), we get a palindrome (521868125).

The spelling of 201434023 in words is "two hundred one million, four hundred thirty-four thousand, twenty-three".