31040142111 has 20 divisors (see below), whose sum is σ = 50583936744. Its totient is φ = 18812206800.

The previous prime is 31040142097. The next prime is 31040142113. The reversal of 31040142111 is 11124104013.

It is not a de Polignac number, because 31040142111 - 2⁹ = 31040141599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31040142113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17417820 + ... + 17419601.

Almost surely, 2^31040142111 is an apocalyptic number.

31040142111 is a deficient number, since it is larger than the sum of its proper divisors (19543794633).

31040142111 is a wasteful number, since it uses less digits than its factorization.

31040142111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34837444 (or 34837435 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 31040142111 its reverse (11124104013), we get a palindrome (42164246124).

The spelling of 31040142111 in words is "thirty-one billion, forty million, one hundred forty-two thousand, one hundred eleven".