20223123202 has 4 divisors (see below), whose sum is σ = 30334684806. Its totient is φ = 10111561600.

The previous prime is 20223123197. The next prime is 20223123209. The reversal of 20223123202 is 20232132202.

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

It can be written as a sum of positive squares in only one way, i.e., 12977538561 + 7245584641 = 113919^2 + 85121^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20223123202.

It is not an unprimeable number, because it can be changed into a prime (20223123209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055780799 + ... + 5055780802.

Almost surely, 2^20223123202 is an apocalyptic number.

20223123202 is a deficient number, since it is larger than the sum of its proper divisors (10111561604).

20223123202 is a wasteful number, since it uses less digits than its factorization.

20223123202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111561603.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20223123202 its reverse (20232132202), we get a palindrome (40455255404).

The spelling of 20223123202 in words is "twenty billion, two hundred twenty-three million, one hundred twenty-three thousand, two hundred two".