1031312122 has 8 divisors (see below), whose sum is σ = 1548017172. Its totient is φ = 515306400.

The previous prime is 1031312083. The next prime is 1031312131. The reversal of 1031312122 is 2212131301.

It can be written as a sum of positive squares in 2 ways, for example, as 915728121 + 115584001 = 30261^2 + 10751^2 .

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 = 1031312096 and 1031312105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171129 + ... + 177052.

Almost surely, 2^1031312122 is an apocalyptic number.

1031312122 is a deficient number, since it is larger than the sum of its proper divisors (516705050).

1031312122 is a wasteful number, since it uses less digits than its factorization.

1031312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349664.

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

The square root of 1031312122 is about 32114.0486703250. The cubic root of 1031312122 is about 1010.3302916098.

Adding to 1031312122 its reverse (2212131301), we get a palindrome (3243443423).

The spelling of 1031312122 in words is "one billion, thirty-one million, three hundred twelve thousand, one hundred twenty-two".