31240034111 has 8 divisors (see below), whose sum is σ = 36701578704.
Its totient is φ = 26215413120.
The previous prime is 31240034107. The next prime is 31240034123. The reversal of 31240034111 is 11143004213.
Adding to 31240034111 its reverse (11143004213), we get a palindrome (42383038324).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31240034111 - 22 = 31240034107 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 (31240034131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109230746 + ... + 109231031.
It is an arithmetic number, because the mean of its divisors is an integer number (4587697338).
Almost surely, 231240034111 is an apocalyptic number.
31240034111 is a deficient number, since it is larger than the sum of its proper divisors (5461544593).
31240034111 is a wasteful number, since it uses less digits than its factorization.
31240034111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 218461801.
The product of its (nonzero) digits is 288, while the sum is 20.
The spelling of 31240034111 in words is "thirty-one billion, two hundred forty million, thirty-four thousand, one hundred eleven".