201420554223 has 64 divisors (see below), whose sum is σ = 334013202432. Its totient is φ = 105442698240.

The previous prime is 201420554221. The next prime is 201420554227. The reversal of 201420554223 is 322455024102.

It is not a de Polignac number, because 201420554223 - 2¹ = 201420554221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201420554221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1383040 + ... + 1521722.

It is an arithmetic number, because the mean of its divisors is an integer number (5218956288).

Almost surely, 2^201420554223 is an apocalyptic number.

201420554223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

201420554223 is a deficient number, since it is larger than the sum of its proper divisors (132592648209).

201420554223 is a wasteful number, since it uses less digits than its factorization.

201420554223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138844.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 201420554223 its reverse (322455024102), we get a palindrome (523875578325).

The spelling of 201420554223 in words is "two hundred one billion, four hundred twenty million, five hundred fifty-four thousand, two hundred twenty-three".