242130231 has 24 divisors (see below), whose sum is σ = 401491584. Its totient is φ = 137742480.

The previous prime is 242130211. The next prime is 242130241. The reversal of 242130231 is 132031242.

It is not a de Polignac number, because 242130231 - 2⁷ = 242130103 is a prime.

It is a super-2 number, since 2×242130231² = 117254097528226722, which contains 22 as substring.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242130211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5836 + ... + 22766.

It is an arithmetic number, because the mean of its divisors is an integer number (16728816).

Almost surely, 2^242130231 is an apocalyptic number.

242130231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

242130231 is a deficient number, since it is larger than the sum of its proper divisors (159361353).

242130231 is a wasteful number, since it uses less digits than its factorization.

242130231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17171 (or 17168 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 242130231 is about 15560.5344059900. The cubic root of 242130231 is about 623.2797332224.

Adding to 242130231 its reverse (132031242), we get a palindrome (374161473).

The spelling of 242130231 in words is "two hundred forty-two million, one hundred thirty thousand, two hundred thirty-one".