1031211312122 has 8 divisors (see below), whose sum is σ = 1550855655936. Its totient is φ = 514259426812.

The previous prime is 1031211312121. The next prime is 1031211312137. The reversal of 1031211312122 is 2212131121301.

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 = 1031211312094 and 1031211312103.

It is not an unprimeable number, because it can be changed into a prime (1031211312121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673113668 + ... + 673115199.

It is an arithmetic number, because the mean of its divisors is an integer number (193856956992).

Almost surely, 2^{1031211312122} is an apocalyptic number.

1031211312122 is a deficient number, since it is larger than the sum of its proper divisors (519644343814).

1031211312122 is a wasteful number, since it uses less digits than its factorization.

1031211312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346229252.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1031211312122 its reverse (2212131121301), we get a palindrome (3243342433423).

The spelling of 1031211312122 in words is "one trillion, thirty-one billion, two hundred eleven million, three hundred twelve thousand, one hundred twenty-two".