202321123124 has 6 divisors (see below), whose sum is σ = 354061965474. Its totient is φ = 101160561560.

The previous prime is 202321123111. The next prime is 202321123171. The reversal of 202321123124 is 421321123202.

It can be written as a sum of positive squares in only one way, i.e., 195777931024 + 6543192100 = 442468^2 + 80890^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202321123124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25290140387 + ... + 25290140394.

It is an arithmetic number, because the mean of its divisors is an integer number (59010327579).

Almost surely, 2^202321123124 is an apocalyptic number.

It is an amenable number.

202321123124 is a deficient number, since it is larger than the sum of its proper divisors (151740842350).

202321123124 is a wasteful number, since it uses less digits than its factorization.

202321123124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50580280785 (or 50580280783 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 202321123124 its reverse (421321123202), we get a palindrome (623642246326).

The spelling of 202321123124 in words is "two hundred two billion, three hundred twenty-one million, one hundred twenty-three thousand, one hundred twenty-four".