20123233130 has 128 divisors (see below), whose sum is σ = 49251041280. Its totient is φ = 5716189440.

The previous prime is 20123233129. The next prime is 20123233133. The reversal of 20123233130 is 3133232102.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20123233133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 778067 + ... + 803513.

It is an arithmetic number, because the mean of its divisors is an integer number (384773760).

Almost surely, 2^20123233130 is an apocalyptic number.

20123233130 is an abundant number, since it is smaller than the sum of its proper divisors (29127808150).

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

20123233130 is a wasteful number, since it uses less digits than its factorization.

20123233130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25564.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20123233130 its reverse (3133232102), we get a palindrome (23256465232).

The spelling of 20123233130 in words is "twenty billion, one hundred twenty-three million, two hundred thirty-three thousand, one hundred thirty".