20143123032 has 16 divisors (see below), whose sum is σ = 50357807640. Its totient is φ = 6714374336.

The previous prime is 20143123019. The next prime is 20143123037. The reversal of 20143123032 is 23032134102.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419648373 + ... + 419648420.

Almost surely, 2^20143123032 is an apocalyptic number.

It is an amenable number.

20143123032 is an abundant number, since it is smaller than the sum of its proper divisors (30214684608).

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

20143123032 is a wasteful number, since it uses less digits than its factorization.

20143123032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839296802 (or 839296798 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20143123032 its reverse (23032134102), we get a palindrome (43175257134).

The spelling of 20143123032 in words is "twenty billion, one hundred forty-three million, one hundred twenty-three thousand, thirty-two".