231132030 has 48 divisors (see below), whose sum is σ = 574567344. Its totient is φ = 59503360.

The previous prime is 231132029. The next prime is 231132049. The reversal of 231132030 is 30231132.

It is a super-3 number, since 3×231132030³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 20650 + ... + 29810.

It is an arithmetic number, because the mean of its divisors is an integer number (11970153).

Almost surely, 2^231132030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231132030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287283672).

231132030 is an abundant number, since it is smaller than the sum of its proper divisors (343435314).

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

231132030 is a wasteful number, since it uses less digits than its factorization.

231132030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9229 (or 9200 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 231132030 is about 15203.0270012258. The cubic root of 231132030 is about 613.6961205006.

Adding to 231132030 its reverse (30231132), we get a palindrome (261363162).

The spelling of 231132030 in words is "two hundred thirty-one million, one hundred thirty-two thousand, thirty".