201321124 has 12 divisors (see below), whose sum is σ = 352775500. Its totient is φ = 100528128.

The previous prime is 201321101. The next prime is 201321149. The reversal of 201321124 is 421123102.

It can be written as a sum of positive squares in 2 ways, for example, as 104652900 + 96668224 = 10230^2 + 9832^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201321098 and 201321107.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 29649 + ... + 35800.

Almost surely, 2^201321124 is an apocalyptic number.

It is an amenable number.

201321124 is a deficient number, since it is larger than the sum of its proper divisors (151454376).

201321124 is a wasteful number, since it uses less digits than its factorization.

201321124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66222 (or 66220 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 201321124 is about 14188.7675292817. The cubic root of 201321124 is about 586.0883860671.

Adding to 201321124 its reverse (421123102), we get a palindrome (622444226).

The spelling of 201321124 in words is "two hundred one million, three hundred twenty-one thousand, one hundred twenty-four".