20143123422 has 16 divisors (see below), whose sum is σ = 40771624320. Its totient is φ = 6633478232.

The previous prime is 20143123361. The next prime is 20143123459. The reversal of 20143123422 is 22432134102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20143123392 and 20143123401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20223522 + ... + 20224517.

It is an arithmetic number, because the mean of its divisors is an integer number (2548226520).

Almost surely, 2^20143123422 is an apocalyptic number.

20143123422 is an abundant number, since it is smaller than the sum of its proper divisors (20628500898).

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

20143123422 is a wasteful number, since it uses less digits than its factorization.

20143123422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40448127.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20143123422 its reverse (22432134102), we get a palindrome (42575257524).

The spelling of 20143123422 in words is "twenty billion, one hundred forty-three million, one hundred twenty-three thousand, four hundred twenty-two".