523131030 has 48 divisors (see below), whose sum is σ = 1361322144. Its totient is φ = 139380480.

The previous prime is 523130999. The next prime is 523131043. The reversal of 523131030 is 30131325.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 523130994 and 523131012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158295 + ... + 161565.

It is an arithmetic number, because the mean of its divisors is an integer number (28360878).

Almost surely, 2^523131030 is an apocalyptic number.

523131030 is an abundant number, since it is smaller than the sum of its proper divisors (838191114).

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

523131030 is a wasteful number, since it uses less digits than its factorization.

523131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061 (or 5058 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 523131030 is about 22872.0578435785. The cubic root of 523131030 is about 805.7558991689.

Adding to 523131030 its reverse (30131325), we get a palindrome (553262355).

The spelling of 523131030 in words is "five hundred twenty-three million, one hundred thirty-one thousand, thirty".