231011130 has 64 divisors (see below), whose sum is σ = 670913280. Its totient is φ = 49695744.

The previous prime is 231011119. The next prime is 231011173. The reversal of 231011130 is 31110132.

It is a super-2 number, since 2×231011130² = 106732284367753800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28785 + ... + 35924.

It is an arithmetic number, because the mean of its divisors is an integer number (10483020).

Almost surely, 2^231011130 is an apocalyptic number.

231011130 is an abundant number, since it is smaller than the sum of its proper divisors (439902150).

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

231011130 is a wasteful number, since it uses less digits than its factorization.

231011130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64743.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 231011130 is about 15199.0502992786. The cubic root of 231011130 is about 613.5890982625.

Adding to 231011130 its reverse (31110132), we get a palindrome (262121262).

The spelling of 231011130 in words is "two hundred thirty-one million, eleven thousand, one hundred thirty".