31111342 has 16 divisors (see below), whose sum is σ = 47657664. Its totient is φ = 15228000.

The previous prime is 31111319. The next prime is 31111351. The reversal of 31111342 is 24311113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32592 + ... + 33532.

It is an arithmetic number, because the mean of its divisors is an integer number (2978604).

Almost surely, 2^31111342 is an apocalyptic number.

31111342 is a deficient number, since it is larger than the sum of its proper divisors (16546322).

31111342 is a wasteful number, since it uses less digits than its factorization.

31111342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275.

The product of its digits is 72, while the sum is 16.

The square root of 31111342 is about 5577.7542075642. The cubic root of 31111342 is about 314.5137100643.

Adding to 31111342 its reverse (24311113), we get a palindrome (55422455).

The spelling of 31111342 in words is "thirty-one million, one hundred eleven thousand, three hundred forty-two".