101511442432 has 52 divisors (see below), whose sum is σ = 203886440320. Its totient is φ = 50533613568.

The previous prime is 101511442369. The next prime is 101511442447. The reversal of 101511442432 is 234244115101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 101511442432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883873 + ... + 992095.

Almost surely, 2^101511442432 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 101511442432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101943220160).

101511442432 is an abundant number, since it is smaller than the sum of its proper divisors (102374997888).

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

101511442432 is an equidigital number, since it uses as much as digits as its factorization.

101511442432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108476 (or 108454 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 101511442432 its reverse (234244115101), we get a palindrome (335755557533).

The spelling of 101511442432 in words is "one hundred one billion, five hundred eleven million, four hundred forty-two thousand, four hundred thirty-two".