523112340 has 24 divisors (see below), whose sum is σ = 1464714720. Its totient is φ = 139496608.

The previous prime is 523112339. The next prime is 523112377. The reversal of 523112340 is 43211325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4359210 + ... + 4359329.

It is an arithmetic number, because the mean of its divisors is an integer number (61029780).

Almost surely, 2^523112340 is an apocalyptic number.

It is an amenable number.

523112340 is an abundant number, since it is smaller than the sum of its proper divisors (941602380).

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

523112340 is a wasteful number, since it uses less digits than its factorization.

523112340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718551 (or 8718549 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 523112340 is about 22871.6492627882. The cubic root of 523112340 is about 805.7463032575.

Adding to 523112340 its reverse (43211325), we get a palindrome (566323665).

It can be divided in two parts, 5231 and 12340, that added together give a palindrome (17571).

The spelling of 523112340 in words is "five hundred twenty-three million, one hundred twelve thousand, three hundred forty".