123545443045232 has 120 divisors (see below), whose sum is σ = 264402786018096. Its totient is φ = 55884771790848.

The previous prime is 123545443045231. The next prime is 123545443045243. The reversal of 123545443045232 is 232540344545321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123545443045231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33959288 + ... + 37420904.

Almost surely, 2^{123545443045232} 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 123545443045232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132201393009048).

123545443045232 is an abundant number, since it is smaller than the sum of its proper divisors (140857342972864).

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

123545443045232 is a wasteful number, since it uses less digits than its factorization.

123545443045232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461915 (or 3461896 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 47.

The spelling of 123545443045232 in words is "one hundred twenty-three trillion, five hundred forty-five billion, four hundred forty-three million, forty-five thousand, two hundred thirty-two".