242204020031 has 4 divisors (see below), whose sum is σ = 242441709000. Its totient is φ = 241966331064.

The previous prime is 242204020013. The next prime is 242204020033. The reversal of 242204020031 is 130020402242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242204020031 - 2²² = 242199825727 is a prime.

It is a super-2 number, since 2×242204020031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242204019985 and 242204020012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242204020033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118842956 + ... + 118844993.

It is an arithmetic number, because the mean of its divisors is an integer number (60610427250).

Almost surely, 2^242204020031 is an apocalyptic number.

242204020031 is a deficient number, since it is larger than the sum of its proper divisors (237688969).

242204020031 is a wasteful number, since it uses less digits than its factorization.

242204020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237688968.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 242204020031 its reverse (130020402242), we get a palindrome (372224422273).

The spelling of 242204020031 in words is "two hundred forty-two billion, two hundred four million, twenty thousand, thirty-one".