31061122 has 8 divisors (see below), whose sum is σ = 46645776. Its totient is φ = 15512532.

The previous prime is 31061119. The next prime is 31061123. The reversal of 31061122 is 22116013.

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

It is a junction number, because it is equal to n+sod(n) for n = 31061096 and 31061105.

It is not an unprimeable number, because it can be changed into a prime (31061123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6748 + ... + 10375.

It is an arithmetic number, because the mean of its divisors is an integer number (5830722).

Almost surely, 2^31061122 is an apocalyptic number.

31061122 is a deficient number, since it is larger than the sum of its proper divisors (15584654).

31061122 is a wasteful number, since it uses less digits than its factorization.

31061122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18032.

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

The square root of 31061122 is about 5573.2505775355. The cubic root of 31061122 is about 314.3443893402.

Adding to 31061122 its reverse (22116013), we get a palindrome (53177135).

The spelling of 31061122 in words is "thirty-one million, sixty-one thousand, one hundred twenty-two".