242120532231 has 24 divisors (see below), whose sum is σ = 351509907840. Its totient is φ = 160592910336.

The previous prime is 242120532223. The next prime is 242120532359. The reversal of 242120532231 is 132235021242.

242120532231 is a `hidden beast` number, since 2 + 4 + 2 + 120 + 532 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 242120532231 - 2³ = 242120532223 is a prime.

It is a super-2 number, since 2×242120532231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242120532195 and 242120532204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242120532221) 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, 3370335 + ... + 3441423.

It is an arithmetic number, because the mean of its divisors is an integer number (14646246160).

Almost surely, 2^242120532231 is an apocalyptic number.

242120532231 is a deficient number, since it is larger than the sum of its proper divisors (109389375609).

242120532231 is a wasteful number, since it uses less digits than its factorization.

242120532231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73015 (or 73012 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 242120532231 its reverse (132235021242), we get a palindrome (374355553473).

The spelling of 242120532231 in words is "two hundred forty-two billion, one hundred twenty million, five hundred thirty-two thousand, two hundred thirty-one".