242140440031 has 16 divisors (see below), whose sum is σ = 284490416448. Its totient is φ = 201766118400.

The previous prime is 242140439993. The next prime is 242140440041. The reversal of 242140440031 is 130044041242.

It is not a de Polignac number, because 242140440031 - 2¹³ = 242140431839 is a prime.

It is a super-2 number, since 2×242140440031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242140439978 and 242140440005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242140440041) 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, 1420590 + ... + 1581883.

It is an arithmetic number, because the mean of its divisors is an integer number (17780651028).

Almost surely, 2^242140440031 is an apocalyptic number.

242140440031 is a deficient number, since it is larger than the sum of its proper divisors (42349976417).

242140440031 is a wasteful number, since it uses less digits than its factorization.

242140440031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002802.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 242140440031 its reverse (130044041242), we get a palindrome (372184481273).

The spelling of 242140440031 in words is "two hundred forty-two billion, one hundred forty million, four hundred forty thousand, thirty-one".