31440413341111 has 4 divisors (see below), whose sum is σ = 31440428700400. Its totient is φ = 31440397981824.

The previous prime is 31440413341109. The next prime is 31440413341193. The reversal of 31440413341111 is 11114331404413.

It is a happy number.

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 31440413341111 - 2¹ = 31440413341109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31440413344111) 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, 4031466 + ... + 8895703.

It is an arithmetic number, because the mean of its divisors is an integer number (7860107175100).

Almost surely, 2^{31440413341111} is an apocalyptic number.

31440413341111 is a deficient number, since it is larger than the sum of its proper divisors (15359289).

31440413341111 is a wasteful number, since it uses less digits than its factorization.

31440413341111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15359288.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 31440413341111 its reverse (11114331404413), we get a palindrome (42554744745524).

The spelling of 31440413341111 in words is "thirty-one trillion, four hundred forty billion, four hundred thirteen million, three hundred forty-one thousand, one hundred eleven".