31144340441101 has 4 divisors (see below), whose sum is σ = 31144712784192. Its totient is φ = 31143968098012.

The previous prime is 31144340441077. The next prime is 31144340441143. The reversal of 31144340441101 is 10114404344113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31144340441101 - 2⁵ = 31144340441069 is a prime.

It is a super-4 number, since 4×31144340441101⁴ (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31144340441161) 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, 186046051 + ... + 186213376.

It is an arithmetic number, because the mean of its divisors is an integer number (7786178196048).

Almost surely, 2^{31144340441101} is an apocalyptic number.

It is an amenable number.

31144340441101 is a deficient number, since it is larger than the sum of its proper divisors (372343091).

31144340441101 is an equidigital number, since it uses as much as digits as its factorization.

31144340441101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372343090.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 31144340441101 its reverse (10114404344113), we get a palindrome (41258744785214).

The spelling of 31144340441101 in words is "thirty-one trillion, one hundred forty-four billion, three hundred forty million, four hundred forty-one thousand, one hundred one".