242021131 has 8 divisors (see below), whose sum is σ = 264204864. Its totient is φ = 219867720.

The previous prime is 242021119. The next prime is 242021141. The reversal of 242021131 is 131120242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242021131 - 2²¹ = 239923979 is a prime.

It is a super-2 number, since 2×242021131² = 117148455701038322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242021141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11136 + ... + 24658.

It is an arithmetic number, because the mean of its divisors is an integer number (33025608).

Almost surely, 2^242021131 is an apocalyptic number.

242021131 is a deficient number, since it is larger than the sum of its proper divisors (22183733).

242021131 is a wasteful number, since it uses less digits than its factorization.

242021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15161.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 242021131 is about 15557.0283473419. The cubic root of 242021131 is about 623.1861058737.

Adding to 242021131 its reverse (131120242), we get a palindrome (373141373).

It can be divided in two parts, 2420211 and 31, that added together give a palindrome (2420242).

The spelling of 242021131 in words is "two hundred forty-two million, twenty-one thousand, one hundred thirty-one".