1331312131122 has 64 divisors (see below), whose sum is σ = 2690730577920. Its totient is φ = 439106863104.

The previous prime is 1331312131031. The next prime is 1331312131139. The reversal of 1331312131122 is 2211312131331.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1331312131092 and 1331312131101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710790378 + ... + 710792250.

It is an arithmetic number, because the mean of its divisors is an integer number (42042665280).

Almost surely, 2^{1331312131122} is an apocalyptic number.

1331312131122 is an abundant number, since it is smaller than the sum of its proper divisors (1359418446798).

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

1331312131122 is a wasteful number, since it uses less digits than its factorization.

1331312131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987.

The product of its digits is 648, while the sum is 24.

Adding to 1331312131122 its reverse (2211312131331), we get a palindrome (3542624262453).

The spelling of 1331312131122 in words is "one trillion, three hundred thirty-one billion, three hundred twelve million, one hundred thirty-one thousand, one hundred twenty-two".