313601221530 has 48 divisors (see below), whose sum is σ = 837400027464. Its totient is φ = 81366802560.

The previous prime is 313601221529. The next prime is 313601221541. The reversal of 313601221530 is 35122106313.

313601221530 is a `hidden beast` number, since 3 + 1 + 3 + 6 + 0 + 122 + 1 + 530 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 287689558689 + 25911662841 = 536367^2 + 160971^2 .

It is a super-2 number, since 2×313601221530² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313601221494 and 313601221503.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47083941 + ... + 47090600.

Almost surely, 2^313601221530 is an apocalyptic number.

313601221530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

313601221530 is an abundant number, since it is smaller than the sum of its proper divisors (523798805934).

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

313601221530 is a wasteful number, since it uses less digits than its factorization.

313601221530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94174591 (or 94174588 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 313601221530 its reverse (35122106313), we get a palindrome (348723327843).

The spelling of 313601221530 in words is "three hundred thirteen billion, six hundred one million, two hundred twenty-one thousand, five hundred thirty".