1313021200122 has 24 divisors (see below), whose sum is σ = 2845132561440. Its totient is φ = 437634765000.

The previous prime is 1313021200097. The next prime is 1313021200129. The reversal of 1313021200122 is 2210021203131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1313021200095 and 1313021200104.

It is not an unprimeable number, because it can be changed into a prime (1313021200129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3039222 + ... + 3444257.

It is an arithmetic number, because the mean of its divisors is an integer number (118547190060).

Almost surely, 2^{1313021200122} is an apocalyptic number.

1313021200122 is an abundant number, since it is smaller than the sum of its proper divisors (1532111361318).

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

1313021200122 is a wasteful number, since it uses less digits than its factorization.

1313021200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6494738 (or 6494735 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1313021200122 its reverse (2210021203131), we get a palindrome (3523042403253).

The spelling of 1313021200122 in words is "one trillion, three hundred thirteen billion, twenty-one million, two hundred thousand, one hundred twenty-two".