20123001322 has 4 divisors (see below), whose sum is σ = 30184501986. Its totient is φ = 10061500660.

The previous prime is 20123001299. The next prime is 20123001329. The reversal of 20123001322 is 22310032102.

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., 10152779121 + 9970222201 = 100761^2 + 99851^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20123001296 and 20123001305.

It is not an unprimeable number, because it can be changed into a prime (20123001329) 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 as a sum of consecutive naturals, namely, 5030750329 + ... + 5030750332.

Almost surely, 2^20123001322 is an apocalyptic number.

20123001322 is a deficient number, since it is larger than the sum of its proper divisors (10061500664).

20123001322 is a wasteful number, since it uses less digits than its factorization.

20123001322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061500663.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20123001322 its reverse (22310032102), we get a palindrome (42433033424).

The spelling of 20123001322 in words is "twenty billion, one hundred twenty-three million, one thousand, three hundred twenty-two".