20102123322 has 40 divisors (see below), whose sum is σ = 45080509716. Its totient is φ = 6695224128.

The previous prime is 20102123311. The next prime is 20102123323. The reversal of 20102123322 is 22332120102.

It can be written as a sum of positive squares in 2 ways, for example, as 19684370601 + 417752721 = 140301^2 + 20439^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20102123295 and 20102123304.

It is not an unprimeable number, because it can be changed into a prime (20102123323) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 150238 + ... + 250550.

Almost surely, 2^20102123322 is an apocalyptic number.

20102123322 is an abundant number, since it is smaller than the sum of its proper divisors (24978386394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20102123322 is a wasteful number, since it uses less digits than its factorization.

20102123322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101564 (or 101555 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20102123322 its reverse (22332120102), we get a palindrome (42434243424).

The spelling of 20102123322 in words is "twenty billion, one hundred two million, one hundred twenty-three thousand, three hundred twenty-two".