201144131015 has 16 divisors (see below), whose sum is σ = 250647245856. Its totient is φ = 154839974400.

The previous prime is 201144131011. The next prime is 201144131017. The reversal of 201144131015 is 510131441102.

It is not a de Polignac number, because 201144131015 - 2² = 201144131011 is a prime.

It is a super-2 number, since 2×201144131015² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201144131011) 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, 6705521 + ... + 6735450.

It is an arithmetic number, because the mean of its divisors is an integer number (15665452866).

Almost surely, 2^201144131015 is an apocalyptic number.

201144131015 is a deficient number, since it is larger than the sum of its proper divisors (49503114841).

201144131015 is a wasteful number, since it uses less digits than its factorization.

201144131015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13441090.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 201144131015 its reverse (510131441102), we get a palindrome (711275572117).

The spelling of 201144131015 in words is "two hundred one billion, one hundred forty-four million, one hundred thirty-one thousand, fifteen".