20143123030 has 64 divisors (see below), whose sum is σ = 40447719360. Its totient is φ = 7177641984.

The previous prime is 20143123019. The next prime is 20143123037. The reversal of 20143123030 is 3032134102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 20143122989 and 20143123007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20143123037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4820302 + ... + 4824478.

It is an arithmetic number, because the mean of its divisors is an integer number (631995615).

Almost surely, 2^20143123030 is an apocalyptic number.

20143123030 is an abundant number, since it is smaller than the sum of its proper divisors (20304596330).

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

20143123030 is a wasteful number, since it uses less digits than its factorization.

20143123030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713.

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

Adding to 20143123030 its reverse (3032134102), we get a palindrome (23175257132).

The spelling of 20143123030 in words is "twenty billion, one hundred forty-three million, one hundred twenty-three thousand, thirty".