201165161231 has 8 divisors (see below), whose sum is σ = 204193946880. Its totient is φ = 198137149848.

The previous prime is 201165161221. The next prime is 201165161233. The reversal of 201165161231 is 132161561102.

201165161231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201165161231 - 2²⁶ = 201098052367 is a prime.

It is a super-2 number, since 2×201165161231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201165161194 and 201165161203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201165161233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341000 + ... + 720146.

It is an arithmetic number, because the mean of its divisors is an integer number (25524243360).

Almost surely, 2^201165161231 is an apocalyptic number.

201165161231 is a deficient number, since it is larger than the sum of its proper divisors (3028785649).

201165161231 is an equidigital number, since it uses as much as digits as its factorization.

201165161231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387133.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 201165161231 in words is "two hundred one billion, one hundred sixty-five million, one hundred sixty-one thousand, two hundred thirty-one".