202220320102123 has 4 divisors (see below), whose sum is σ = 212863494844360. Its totient is φ = 191577145359888.

The previous prime is 202220320102103. The next prime is 202220320102133. The reversal of 202220320102123 is 321201023022202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202220320102123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202220320102094 and 202220320102103.

It is not an unprimeable number, because it can be changed into a prime (202220320102103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5321587371090 + ... + 5321587371127.

It is an arithmetic number, because the mean of its divisors is an integer number (53215873711090).

Almost surely, 2^{202220320102123} is an apocalyptic number.

202220320102123 is a deficient number, since it is larger than the sum of its proper divisors (10643174742237).

202220320102123 is a wasteful number, since it uses less digits than its factorization.

202220320102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10643174742236.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 202220320102123 its reverse (321201023022202), we get a palindrome (523421343124325).

The spelling of 202220320102123 in words is "two hundred two trillion, two hundred twenty billion, three hundred twenty million, one hundred two thousand, one hundred twenty-three".