201523541103 has 6 divisors (see below), whose sum is σ = 291089559384. Its totient is φ = 134349027396.

The previous prime is 201523541083. The next prime is 201523541111. The reversal of 201523541103 is 301145325102.

201523541103 is a `hidden beast` number, since 2 + 0 + 15 + 2 + 3 + 541 + 103 = 666.

It is not a de Polignac number, because 201523541103 - 2⁹ = 201523540591 is a prime.

It is a super-2 number, since 2×201523541103² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201523541003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11195752275 + ... + 11195752292.

It is an arithmetic number, because the mean of its divisors is an integer number (48514926564).

Almost surely, 2^201523541103 is an apocalyptic number.

201523541103 is a deficient number, since it is larger than the sum of its proper divisors (89566018281).

201523541103 is a wasteful number, since it uses less digits than its factorization.

201523541103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22391504573 (or 22391504570 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 201523541103 its reverse (301145325102), we get a palindrome (502668866205).

The spelling of 201523541103 in words is "two hundred one billion, five hundred twenty-three million, five hundred forty-one thousand, one hundred three".