20310240132 has 192 divisors, whose sum is σ = 67043289600. Its totient is φ = 5171765760.

The previous prime is 20310240121. The next prime is 20310240149. The reversal of 20310240132 is 23104201302.

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

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 249382 + ... + 320642.

It is an arithmetic number, because the mean of its divisors is an integer number (349183800).

Almost surely, 2^20310240132 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 20310240132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33521644800).

20310240132 is an abundant number, since it is smaller than the sum of its proper divisors (46733049468).

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

20310240132 is a wasteful number, since it uses less digits than its factorization.

20310240132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71323 (or 71315 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20310240132 its reverse (23104201302), we get a palindrome (43414441434).

The spelling of 20310240132 in words is "twenty billion, three hundred ten million, two hundred forty thousand, one hundred thirty-two".