31030122 has 16 divisors (see below), whose sum is σ = 63231840. Its totient is φ = 10148112.

The previous prime is 31030093. The next prime is 31030123. The reversal of 31030122 is 22103013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31030098 and 31030107.

It is not an unprimeable number, because it can be changed into a prime (31030123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48472 + ... + 49107.

It is an arithmetic number, because the mean of its divisors is an integer number (3951990).

Almost surely, 2^31030122 is an apocalyptic number.

31030122 is an abundant number, since it is smaller than the sum of its proper divisors (32201718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31030122 is a wasteful number, since it uses less digits than its factorization.

31030122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97637.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 31030122 is about 5570.4687414974. The cubic root of 31030122 is about 314.2397792567.

Adding to 31030122 its reverse (22103013), we get a palindrome (53133135).

The spelling of 31030122 in words is "thirty-one million, thirty thousand, one hundred twenty-two".