31142344011 has 8 divisors (see below), whose sum is σ = 43328478720. Its totient is φ = 19858885992.

The previous prime is 31142343943. The next prime is 31142344097. The reversal of 31142344011 is 11044324113.

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

It is not a de Polignac number, because 31142344011 - 2¹⁵ = 31142311243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31142344411) 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, 225669091 + ... + 225669228.

It is an arithmetic number, because the mean of its divisors is an integer number (5416059840).

Almost surely, 2^31142344011 is an apocalyptic number.

31142344011 is a deficient number, since it is larger than the sum of its proper divisors (12186134709).

31142344011 is a wasteful number, since it uses less digits than its factorization.

31142344011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451338345.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31142344011 its reverse (11044324113), we get a palindrome (42186668124).

The spelling of 31142344011 in words is "thirty-one billion, one hundred forty-two million, three hundred forty-four thousand, eleven".