201054240523 has 4 divisors (see below), whose sum is σ = 201056143320. Its totient is φ = 201052337728.

The previous prime is 201054240511. The next prime is 201054240551. The reversal of 201054240523 is 325042450102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201054240523 - 2⁹ = 201054240011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201054240491 and 201054240500.

It is not an unprimeable number, because it can be changed into a prime (201054240503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782965 + ... + 1007542.

It is an arithmetic number, because the mean of its divisors is an integer number (50264035830).

Almost surely, 2^201054240523 is an apocalyptic number.

201054240523 is a deficient number, since it is larger than the sum of its proper divisors (1902797).

201054240523 is a wasteful number, since it uses less digits than its factorization.

201054240523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902796.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 201054240523 its reverse (325042450102), we get a palindrome (526096690625).

The spelling of 201054240523 in words is "two hundred one billion, fifty-four million, two hundred forty thousand, five hundred twenty-three".