20301231132 has 216 divisors, whose sum is σ = 63776993280. Its totient is φ = 5331381120.

The previous prime is 20301231107. The next prime is 20301231133. The reversal of 20301231132 is 23113210302.

20301231132 is a `hidden beast` number, since 2 + 0 + 301 + 231 + 132 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301231133) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11540469 + ... + 11542227.

Almost surely, 2^20301231132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20301231132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31888496640).

20301231132 is an abundant number, since it is smaller than the sum of its proper divisors (43475762148).

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

20301231132 is a wasteful number, since it uses less digits than its factorization.

20301231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073 (or 2055 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20301231132 its reverse (23113210302), we get a palindrome (43414441434).

The spelling of 20301231132 in words is "twenty billion, three hundred one million, two hundred thirty-one thousand, one hundred thirty-two".