1313551354520 has 128 divisors (see below), whose sum is σ = 3152502374400. Its totient is φ = 491861039616.

The previous prime is 1313551354471. The next prime is 1313551354537. The reversal of 1313551354520 is 254531553131.

It is a super-2 number, since 2×1313551354520² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 3944009 + ... + 4264071.

It is an arithmetic number, because the mean of its divisors is an integer number (24628924800).

Almost surely, 2^{1313551354520} is an apocalyptic number.

1313551354520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313551354520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1576251187200).

1313551354520 is an abundant number, since it is smaller than the sum of its proper divisors (1838951019880).

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

1313551354520 is a wasteful number, since it uses less digits than its factorization.

1313551354520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320217 (or 320213 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 1313551354520 in words is "one trillion, three hundred thirteen billion, five hundred fifty-one million, three hundred fifty-four thousand, five hundred twenty".