20123441404032 has 128 divisors (see below), whose sum is σ = 56635997515200. Its totient is φ = 6308906434560.

The previous prime is 20123441404009. The next prime is 20123441404067. The reversal of 20123441404032 is 23040414432102.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8467932 + ... + 10580772.

Almost surely, 2^{20123441404032} 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 20123441404032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28317998757600).

20123441404032 is an abundant number, since it is smaller than the sum of its proper divisors (36512556111168).

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

20123441404032 is a wasteful number, since it uses less digits than its factorization.

20123441404032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114334 (or 2114322 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20123441404032 its reverse (23040414432102), we get a palindrome (43163855836134).

The spelling of 20123441404032 in words is "twenty trillion, one hundred twenty-three billion, four hundred forty-one million, four hundred four thousand, thirty-two".