20323122122 has 4 divisors (see below), whose sum is σ = 30484683186. Its totient is φ = 10161561060.

The previous prime is 20323122101. The next prime is 20323122137. The reversal of 20323122122 is 22122132302.

It is a happy number.

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., 12325218361 + 7997903761 = 111019^2 + 89431^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20323122094 and 20323122103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5080780529 + ... + 5080780532.

Almost surely, 2^20323122122 is an apocalyptic number.

20323122122 is a deficient number, since it is larger than the sum of its proper divisors (10161561064).

20323122122 is a wasteful number, since it uses less digits than its factorization.

20323122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10161561063.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20323122122 its reverse (22122132302), we get a palindrome (42445254424).

The spelling of 20323122122 in words is "twenty billion, three hundred twenty-three million, one hundred twenty-two thousand, one hundred twenty-two".