201144121331 has 2 divisors, whose sum is σ = 201144121332. Its totient is φ = 201144121330.

The previous prime is 201144121327. The next prime is 201144121351. The reversal of 201144121331 is 133121441102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201144121331 - 2² = 201144121327 is a prime.

It is a super-2 number, since 2×201144121331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201144121297 and 201144121306.

It is not a weakly prime, because it can be changed into another prime (201144121301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100572060665 + 100572060666.

It is an arithmetic number, because the mean of its divisors is an integer number (100572060666).

Almost surely, 2^201144121331 is an apocalyptic number.

201144121331 is a deficient number, since it is larger than the sum of its proper divisors (1).

201144121331 is an equidigital number, since it uses as much as digits as its factorization.

201144121331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 201144121331 its reverse (133121441102), we get a palindrome (334265562433).

The spelling of 201144121331 in words is "two hundred one billion, one hundred forty-four million, one hundred twenty-one thousand, three hundred thirty-one".