242131121 has 16 divisors (see below), whose sum is σ = 254304960. Its totient is φ = 230247360.

The previous prime is 242131093. The next prime is 242131163. The reversal of 242131121 is 121131242.

242131121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 242131121 - 2¹⁴ = 242114737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242131121.

It is not an unprimeable number, because it can be changed into a prime (242131181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855446 + ... + 855728.

It is an arithmetic number, because the mean of its divisors is an integer number (15894060).

Almost surely, 2^242131121 is an apocalyptic number.

It is an amenable number.

242131121 is a deficient number, since it is larger than the sum of its proper divisors (12173839).

242131121 is a wasteful number, since it uses less digits than its factorization.

242131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656.

The product of its digits is 96, while the sum is 17.

The square root of 242131121 is about 15560.5630039533. The cubic root of 242131121 is about 623.2804968862.

Adding to 242131121 its reverse (121131242), we get a palindrome (363262363).

The spelling of 242131121 in words is "two hundred forty-two million, one hundred thirty-one thousand, one hundred twenty-one".