1313210122320 has 80 divisors (see below), whose sum is σ = 4074825569472. Its totient is φ = 349856102400.

The previous prime is 1313210122307. The next prime is 1313210122321. The reversal of 1313210122320 is 232210123131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313210122321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2350857 + ... + 2855336.

Almost surely, 2^{1313210122320} is an apocalyptic number.

1313210122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313210122320 is an abundant number, since it is smaller than the sum of its proper divisors (2761615447152).

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

1313210122320 is a wasteful number, since it uses less digits than its factorization.

1313210122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207260 (or 5207254 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1313210122320 its reverse (232210123131), we get a palindrome (1545420245451).

The spelling of 1313210122320 in words is "one trillion, three hundred thirteen billion, two hundred ten million, one hundred twenty-two thousand, three hundred twenty".