1031213123122 has 64 divisors (see below), whose sum is σ = 1961866368000. Its totient is φ = 403912958400.

The previous prime is 1031213123077. The next prime is 1031213123123. The reversal of 1031213123122 is 2213213121301.

It is a junction number, because it is equal to n+sod(n) for n = 1031213123093 and 1031213123102.

It is not an unprimeable number, because it can be changed into a prime (1031213123123) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 328279 + ... + 1473157.

It is an arithmetic number, because the mean of its divisors is an integer number (30654162000).

Almost surely, 2^{1031213123122} is an apocalyptic number.

1031213123122 is a deficient number, since it is larger than the sum of its proper divisors (930653244878).

1031213123122 is a wasteful number, since it uses less digits than its factorization.

1031213123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145016 (or 1145002 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1031213123122 its reverse (2213213121301), we get a palindrome (3244426244423).

The spelling of 1031213123122 in words is "one trillion, thirty-one billion, two hundred thirteen million, one hundred twenty-three thousand, one hundred twenty-two".