201523454102003 has 16 divisors (see below), whose sum is σ = 227824279624800. Its totient is φ = 176574918938880.

The previous prime is 201523454101967. The next prime is 201523454102053. The reversal of 201523454102003 is 300201454325102.

It is not a de Polignac number, because 201523454102003 - 2¹⁸ = 201523453839859 is a prime.

It is a super-2 number, since 2×201523454102003² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201523454102053) 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, 554945876 + ... + 555308897.

It is an arithmetic number, because the mean of its divisors is an integer number (14239017476550).

Almost surely, 2^{201523454102003} is an apocalyptic number.

201523454102003 is a deficient number, since it is larger than the sum of its proper divisors (26300825522797).

201523454102003 is a wasteful number, since it uses less digits than its factorization.

201523454102003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110255382.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 201523454102003 in words is "two hundred one trillion, five hundred twenty-three billion, four hundred fifty-four million, one hundred two thousand, three".