31424211111 has 8 divisors (see below), whose sum is σ = 43031352304. Its totient is φ = 20383272000.

The previous prime is 31424211109. The next prime is 31424211121. The reversal of 31424211111 is 11111242413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31424211111 - 2¹ = 31424211109 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 (31424211121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141550390 + ... + 141550611.

It is an arithmetic number, because the mean of its divisors is an integer number (5378919038).

Almost surely, 2^31424211111 is an apocalyptic number.

31424211111 is a deficient number, since it is larger than the sum of its proper divisors (11607141193).

31424211111 is a wasteful number, since it uses less digits than its factorization.

31424211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283101041.

The product of its digits is 192, while the sum is 21.

Adding to 31424211111 its reverse (11111242413), we get a palindrome (42535453524).

The spelling of 31424211111 in words is "thirty-one billion, four hundred twenty-four million, two hundred eleven thousand, one hundred eleven".