202312221313123 has 16 divisors (see below), whose sum is σ = 204982859980800. Its totient is φ = 199644337788480.

The previous prime is 202312221313087. The next prime is 202312221313217. The reversal of 202312221313123 is 321313122213202.

It is a cyclic number.

It is not a de Polignac number, because 202312221313123 - 2⁴⁵ = 167127849224291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202312221313091 and 202312221313100.

It is not an unprimeable number, because it can be changed into a prime (202312221313823) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3934555308 + ... + 3934606726.

It is an arithmetic number, because the mean of its divisors is an integer number (12811428748800).

Almost surely, 2^{202312221313123} is an apocalyptic number.

202312221313123 is a deficient number, since it is larger than the sum of its proper divisors (2670638667677).

202312221313123 is a wasteful number, since it uses less digits than its factorization.

202312221313123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77202.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 202312221313123 its reverse (321313122213202), we get a palindrome (523625343526325).

The spelling of 202312221313123 in words is "two hundred two trillion, three hundred twelve billion, two hundred twenty-one million, three hundred thirteen thousand, one hundred twenty-three".