20023133122 has 4 divisors (see below), whose sum is σ = 30034699686. Its totient is φ = 10011566560.

The previous prime is 20023133113. The next prime is 20023133129. The reversal of 20023133122 is 22133132002.

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., 20019137121 + 3996001 = 141489^2 + 1999^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20023133122.

It is not an unprimeable number, because it can be changed into a prime (20023133129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005783279 + ... + 5005783282.

Almost surely, 2^20023133122 is an apocalyptic number.

20023133122 is a deficient number, since it is larger than the sum of its proper divisors (10011566564).

20023133122 is a wasteful number, since it uses less digits than its factorization.

20023133122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10011566563.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20023133122 its reverse (22133132002), we get a palindrome (42156265124).

The spelling of 20023133122 in words is "twenty billion, twenty-three million, one hundred thirty-three thousand, one hundred twenty-two".