201144240331 has 2 divisors, whose sum is σ = 201144240332. Its totient is φ = 201144240330.

The previous prime is 201144240301. The next prime is 201144240337. The reversal of 201144240331 is 133042441102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201144240331 - 2²³ = 201135851723 is a prime.

It is a super-2 number, since 2×201144240331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201144240296 and 201144240305.

It is not a weakly prime, because it can be changed into another prime (201144240337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100572120165 + 100572120166.

It is an arithmetic number, because the mean of its divisors is an integer number (100572120166).

Almost surely, 2^201144240331 is an apocalyptic number.

201144240331 is a deficient number, since it is larger than the sum of its proper divisors (1).

201144240331 is an equidigital number, since it uses as much as digits as its factorization.

201144240331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 201144240331 its reverse (133042441102), we get a palindrome (334186681433).

The spelling of 201144240331 in words is "two hundred one billion, one hundred forty-four million, two hundred forty thousand, three hundred thirty-one".