201115239543 has 6 divisors (see below), whose sum is σ = 290499790464. Its totient is φ = 134076826356.

The previous prime is 201115239517. The next prime is 201115239547. The reversal of 201115239543 is 345932511102.

It is a happy number.

201115239543 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 1 + 523 + 95 + 43 = 666.

It is not a de Polignac number, because 201115239543 - 2²⁰ = 201114190967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201115239498 and 201115239507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201115239547) 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, 11173068855 + ... + 11173068872.

It is an arithmetic number, because the mean of its divisors is an integer number (48416631744).

Almost surely, 2^201115239543 is an apocalyptic number.

201115239543 is a deficient number, since it is larger than the sum of its proper divisors (89384550921).

201115239543 is a wasteful number, since it uses less digits than its factorization.

201115239543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22346137733 (or 22346137730 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 201115239543 in words is "two hundred one billion, one hundred fifteen million, two hundred thirty-nine thousand, five hundred forty-three".