31144140241 has 8 divisors (see below), whose sum is σ = 31196748960. Its totient is φ = 31091572512.

The previous prime is 31144140239. The next prime is 31144140271. The reversal of 31144140241 is 14204144113.

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 31144140241 - 2¹ = 31144140239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31144140271) 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, 1759845 + ... + 1777453.

It is an arithmetic number, because the mean of its divisors is an integer number (3899593620).

Almost surely, 2^31144140241 is an apocalyptic number.

It is an amenable number.

31144140241 is a deficient number, since it is larger than the sum of its proper divisors (52608719).

31144140241 is a wasteful number, since it uses less digits than its factorization.

31144140241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20495.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 31144140241 its reverse (14204144113), we get a palindrome (45348284354).

The spelling of 31144140241 in words is "thirty-one billion, one hundred forty-four million, one hundred forty thousand, two hundred forty-one".