201124021313 has 2 divisors, whose sum is σ = 201124021314. Its totient is φ = 201124021312.

The previous prime is 201124021309. The next prime is 201124021321. The reversal of 201124021313 is 313120421102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145178526529 + 55945494784 = 381023^2 + 236528^2 .

It is a cyclic number.

It is not a de Polignac number, because 201124021313 - 2² = 201124021309 is a prime.

It is a super-2 number, since 2×201124021313² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201124021013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100562010656 + 100562010657.

It is an arithmetic number, because the mean of its divisors is an integer number (100562010657).

Almost surely, 2^201124021313 is an apocalyptic number.

It is an amenable number.

201124021313 is a deficient number, since it is larger than the sum of its proper divisors (1).

201124021313 is an equidigital number, since it uses as much as digits as its factorization.

201124021313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201124021313 its reverse (313120421102), we get a palindrome (514244442415).

The spelling of 201124021313 in words is "two hundred one billion, one hundred twenty-four million, twenty-one thousand, three hundred thirteen".