31430122 has 8 divisors (see below), whose sum is σ = 48148416. Its totient is φ = 15380652.

The previous prime is 31430117. The next prime is 31430143. The reversal of 31430122 is 22103413.

It is a happy number.

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 = 31430096 and 31430105.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 167088 + ... + 167275.

It is an arithmetic number, because the mean of its divisors is an integer number (6018552).

Almost surely, 2^31430122 is an apocalyptic number.

31430122 is a deficient number, since it is larger than the sum of its proper divisors (16718294).

31430122 is a wasteful number, since it uses less digits than its factorization.

31430122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334412.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31430122 is about 5606.2573968736. The cubic root of 31430122 is about 315.5842754632.

Adding to 31430122 its reverse (22103413), we get a palindrome (53533535).

The spelling of 31430122 in words is "thirty-one million, four hundred thirty thousand, one hundred twenty-two".