223523140542 has 32 divisors (see below), whose sum is σ = 506773115520. Its totient is φ = 65156542560.

The previous prime is 223523140541. The next prime is 223523140571. The reversal of 223523140542 is 245041325322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223523140541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75411184 + ... + 75414147.

It is an arithmetic number, because the mean of its divisors is an integer number (15836659860).

Almost surely, 2^223523140542 is an apocalyptic number.

223523140542 is an abundant number, since it is smaller than the sum of its proper divisors (283249974978).

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

223523140542 is a wasteful number, since it uses less digits than its factorization.

223523140542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150825368.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 223523140542 its reverse (245041325322), we get a palindrome (468564465864).

The spelling of 223523140542 in words is "two hundred twenty-three billion, five hundred twenty-three million, one hundred forty thousand, five hundred forty-two".