243503111742 has 32 divisors (see below), whose sum is σ = 531865401984. Its totient is φ = 73707448800.

The previous prime is 243503111713. The next prime is 243503111851. The reversal of 243503111742 is 247111305342.

243503111742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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, 1974009 + ... + 2093732.

It is an arithmetic number, because the mean of its divisors is an integer number (16620793812).

Almost surely, 2^243503111742 is an apocalyptic number.

243503111742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243503111742 is an abundant number, since it is smaller than the sum of its proper divisors (288362290242).

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

243503111742 is a wasteful number, since it uses less digits than its factorization.

243503111742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068664.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 243503111742 in words is "two hundred forty-three billion, five hundred three million, one hundred eleven thousand, seven hundred forty-two".